4
Installing Oracle Components

This chapter describes how to install Oracle components from the component CDs or from the hard drive.

This chapter contains these topics:

• Installation Differences Between Windows and UNIX

• Before You Install Oracle9i

• Beginning Your Oracle9i Installation

• Choosing an Installation Type

• Reviewing the Installation Session Logs

• Deinstalling Oracle Components and Services

  See Also: "Using Optimal Flexible Architecture" "Oracle Universal Installer Restrictions" Appendix C, "Advanced Installation" for information on such topics as using response files, and installing and using Oracle components in different languages

Installation Differences Between Windows and UNIX

Database administrators experienced with installing Oracle components in UNIX environments must note that many manual setup tasks required on UNIX are not required on Windows. Table 4-1 lists the key differences between UNIX and Windows installation.

Table 4-1 Key Differences between UNIX and Windows Installations  

The...	UNIX	Windows
Environment variables, such as PATH, ORACLE_BASE, ORACLE_HOME, and ORACLE_SID	Set manually	Set in the registry by Oracle Universal Installer
DBA account for database administrators	Created manually	Created by Oracle Universal Installer
Account for running Oracle Universal Installer	Created manually	Log in with Administrator privileges. A separate account is not required.

See Also: "Oracle9i Windows/UNIX Differences" of Oracle9i Database Platform Guide for Windows

Before You Install Oracle9i

Perform the following tasks before installing Oracle components:

1. Read the appropriate online documentation described in "What Documentation Do I Read First?" before you begin installation. This is particularly important if you want to correctly configure a new Oracle9i database that meets your needs.

2. Review and satisfy applicable system and component requirements in Chapter 2, "Preinstallation Requirements" before you begin installation.

3. If you are installing Oracle Real Application Clusters, then see Appendix B, "Oracle Real Application Clusters Preinstallation Tasks" before running Oracle Universal Installer.

4. Log on as a member of the Administrators group to the computer on which to install Oracle components. Log on as a member of the Domain Administrators group if you are installing on a Primary Domain Controller (PDC) or a Backup Domain Controller (BDC).

5. Delete the ORACLE_HOME environment variable if it exists. Refer to your Microsoft online help for more information about deleting environment variables.

   Note: The ORACLE_HOME environment variable is automatically set in the registry. Do not set this variable in the System Environment Variables, because it prevents installation.

6. If you are installing in an existing release 2 (9.2.x) home, stop all Oracle services:
   1. Go to Start > Settings > Control Panel> Administrative Tools > Services.

   2. If any Oracle services (their names begin with "Ora" or "Oracle") exist and have the status Started, select the service.

   3. Click Action > Stop.

   4. Click Close to exit the Services window.

7. Continue to "Beginning Your Oracle9i Installation" .

Beginning Your Oracle9i Installation

You can install Oracle9i components directly from the CDs, or you can copy the CDs to your hard drive and install from there.

Install Oracle components from the CDs:

1. Insert the first component CD.

   The Autorun window automatically appears. If the Autorun window does not appear:

   1. Click Start > Run.

   2. Enter the following:

      DRIVE_LETTER:\autorun\autorun.exe

      The Autorun window appears.

2. Click Install/Deinstall Products from the Autorun window.

   The Welcome window appears.

3. Click Next.

   The Cluster Node Selection window appears if Oracle Universal Installer is running on a cluster. Select the nodes on which you want to install the Oracle software. The local node is always selected by default.

4. Otherwise, the File Locations window appears. Do not change the directory path in the Source field. This is the location of installation files.

5. Enter the Oracle home name and directory path in which to install Oracle components in the Destination fields.

   If you are installing Oracle Real Application Clusters, then all nodes in the cluster must have the same Oracle home name.

   The Oracle home name can be up to 16 characters in length and must include only alphanumeric characters and underscores. Spaces are not allowed. Note that Oracle Universal Installer does not accept a number as the first character in the Name field. The default directory path is <drive with the most available space>:\oracle\ora92.

   Note: If you install Oracle9i into an Oracle home directory that already contains Oracle9i release 2 (9.2.x) client software, the listener is not created. To create the listener, install and run Oracle Net Configuration Assistant. If the Administrator client is installed before Oracle9i, then Oracle Net Configuration Assistant is already installed.

6. Click Next.

   The Available Products window appears. Continue to "Choosing an Installation Type" .

   See Also: "Planning Your Installation" Appendix B, "Oracle Real Application Clusters Preinstallation Tasks" Appendix C, "Advanced Installation"

Install Oracle components from your hard drive:

1. Create two directories at the same level on your hard drive with the names Disk1 and Disk2. You must use these names. For example:

   d:\install\Disk1

   d:\install\Disk2

2. Copy the contents of each component CD to the appropriate directory.

3. Run Disk1\setup.exe.

   The Welcome window appears.

Choosing an Installation Type

Select the Oracle top-level component and installation type from Table 4-2 that best meets your needs. Click Next. Proceed to one of the following sections based on your selection.

Table 4-2 Top-Level Components  

This Top-Level Component...	Contains These Installation Type...
Oracle9i Database	Enterprise Edition, Standard Edition, or Personal Edition Installations Custom Oracle9i Database Installations
Oracle9i Client	Client Administrator or Runtime Installations Custom Oracle9i Client Installations
Oracle9i Management and Integration	Oracle Internet Directory Installations Custom Oracle9i Management and Integration Installations

See Also: "Planning Your Installation" "Licensing Information" Appendix A, "Individual Components Available for Installation" if you are unsure of which installation type to choose

Enterprise Edition, Standard Edition, or Personal Edition Installations

The installation windows that appear when you select Enterprise Edition, Standard Edition, or Personal Edition depend upon your computer configuration and which Oracle components are currently installed.

1. From the Database Configuration Types window, select a database configuration that meets your needs. Table 4-3 describes the available configuration environments.

   Table 4-3 Database Configuration Environments  

   If You Select...	Then Oracle Universal Installer...
   General Purpose Transaction Processing Data Warehouse	Automatically starts Database Configuration Assistant to install a preconfigured database optimized for the selected environment. At the end of the database creation process, you are required to change the SYS and SYSTEM passwords.
   Customized	Automatically starts Database Configuration Assistant to enable the creation of a customized database. At the end of the database creation process, you are required to change the SYS and SYSTEM passwords. This option takes longer than the preconfigured options.
   Software Only	Installs software only and does not run any configuration tools. Select this option if your computer barely meets the minimum memory requirements. Manually start Database Configuration Assistant and Oracle Net Configuration Assistant after installation to install and configure your database and Oracle Net Services environment. Continue to step 9.

2. Enter a port number for service. The Oracle Services for Transaction Server service if Microsoft Transaction Server is detected.

3. Click Next.

   The Database Identification window appears.

4. Enter the global database name and SID in the fields provided. If you selected to configure a Customized database environment, then go to step 9.

   This information is used when Database Configuration Assistant creates your database after installation.

   Note: For Oracle Real Application Clusters, the SID you enter is automatically appended with an identifier. For example, if DB is entered, the first instance in the cluster is given a SID of DB1, and the second instance is given a SID of DB2.

5. Click Next.

   The Database File Location window appears.

6. Enter the directory location for the database files.

7. Click Next.

   The Database Character Set window appears.

8. Choose the database character set from the available options. By default, the database character set is automatically chosen based on the locale setting of the operating system.

9. Click Next.

   The Summary window appears.

10. Review the space requirements to ensure that you have enough disk space and click Install.

11. If you are installing from the CDs, then you are prompted to insert the subsequent disks to continue with installation.

12. Wait until the selected components are installed.

    The Configuration Tools window appears at the end of installation.

    Table 4-4 lists the assistants that automatically start to create and configure your database and Oracle Net Services environments:

    Table 4-4 Configuration Assistants--Database Installation Type  

    This Tool...	Starts...	And...
    Oracle Cluster Configuration Assistant	When Oracle Universal Installer is started on a cluster. It does not show up when the Software Only option is selected	Starts Global Services Daemon (GSD) on all the nodes selected for installation. See Also: Appendix B, "Oracle Real Application Clusters Preinstallation Tasks"
    Oracle Net Configuration Assistant	In all cases except when selecting the Software Only configuration type If Oracle Net services release 9.2 is not already installed in the currently-specified Oracle home	Automatically configures the Oracle Net Services environment See Also: "Configuring the Server Network" for a description of the configuration procedures performed
    Database Configuration Assistant	If no Oracle database is installed in the currently-specified Oracle home See Also: "Usernames and Passwords Overview" for information on password management	Automatically creates an Oracle9i release 2 (9.2.x) database. At the end of the database creation process, you are required to change the SYS and SYSTEM passwords. See Also: "Selecting a Database Creation Method" for a description of the configuration procedures performed
    Starting Oracle HTTP Service	In all cases except when selecting the Software Only configuration type	Creates and starts the HTTP listener as a standalone process for the current session in non-SSL mode. Review the port settings and access URLs on the End of Installation window. The OracleHOME_NAMEHTTPServer service starts when you restart your computer.
    Oracle Intelligent Agent	If the database and Intelligent Agent are installed	Automatically starts the Agent service

    The Configuration Tools window displays the results of running these assistants.

13. Click Next to continue.

    The End of Installation window appears.

14. Click Exit to exit Oracle Universal Installer or click Next Install to install additional components.

    See Also: "Reviewing the Installation Session Logs" for a summary of your installation session Chapter 5, "Postinstallation Configuration Tasks"

    Custom Oracle9i Database Installations

    The Available Product Components window appears when you select the Custom Oracle9i Database installation type. The Install Status column of the Available Product Components window displays the status of all components available for installation:

    1. Select each component to install.

       Note: Only components with a check mark are installed.

    2. Click Next.

       The Component Locations window appears and enables you to select alternate locations in which to install non Oracle home components.

    3. Click Next to accept the default locations. Otherwise, choose a component from the list box and change the default location.

    4. If you selected any of the following components from the Available Product Components window, provide appropriate responses when prompted. Note that most components install silently without prompting you for additional information.

       Table 4-5 Custom Oracle9i Database Component Prompts  

       If You Select...	You Are Prompted To...
       Oracle Net Services	Enter directory usage, listener, and naming method information. See Also: "Configuring the Server Network" for a description of the configuration procedures performed
       Oracle Real Application Clusters	Select the nodes in the cluster on which you want to install the software. Note: This component only appears for selection if your computer is detected to be part of a cluster.
       Oracle Services for Microsoft Transaction Server	Enter a port on which the Oracle MTS Recovery Service will listen.
       Oracle9i	Create a database. Database Configuration Assistant starts at the end of installation and guides you through database creation. At the end of the database creation process, you are required to change the SYS and SYSTEM passwords. Enter the global database name and SID of the database to create. See Also: "Selecting a Database Creation Method" for a description of the database configuration procedures you can perform

       The Summary window appears.

    5. Review the space requirements to ensure that you have enough disk space and click Install.

    6. Wait until the selected components are installed and any configuration tools have completed running. If a configuration assistant fails, then correct the cause of the failure and click Retry.

       The End of Installation window appears.

    7. Click Exit to exit Oracle Universal Installer or click Next Install to install additional components.

       See Also: "Reviewing the Installation Session Logs" for a summary of your installation session Chapter 5, "Postinstallation Configuration Tasks"

    Client Administrator or Runtime Installations

    The Summary window appears when you select the Administrator or Runtime Client installation type.

    1. Review the space requirements to ensure that you have enough disk space and click Install.

    2. Wait until the selected components are installed.

       The Configuration Tools window appears and Oracle Net Configuration Assistant starts. The configuration assistant prompts you to select a method to configure client access to your Oracle9i database if Oracle Net Services release 9.2 is not already installed in the currently-specified Oracle home.

       See Also: "Configuring the Client Network"

    3. Select a method for configuring client access to your Oracle9i database. See the online help and "Configuring the Client Network" for more information on your choices.

       The End of Installation window appears.

    4. Click Exit to exit Oracle Universal Installer or Next Install to install additional components.

       See Also: "Reviewing the Installation Session Logs" for a summary of your installation session Chapter 5, "Postinstallation Configuration Tasks" "Oracle9i Client Components" for a list of components installed with each Oracle9i Client installation type

    Custom Oracle9i Client Installations

    The Available Product Components window appears when you select the Custom Oracle9i Client installation type. The Install Status column of the Available Product Components window displays the status of all components available for installation.

    1. Select each component to install.

       Note: Only components with a check mark are installed.

    2. Select appropriate components to install and click Next.

       The Component Locations window appears and enables you to select alternate locations in which to install some components.

    3. Click Next to accept the default locations. Otherwise, choose a component from the list box and change its location.

    4. If you select any of the components listed in Table 4-6, provide appropriate responses when prompted. Note that most components install silently without prompting you for additional information.

       Table 4-6 Custom Oracle9i Client Component Prompts  

       If You Select...	You Are Prompted To...
       Oracle Net Services	Configure client access to the Oracle9i database if Oracle Net Services is not already installed in the currently-specified Oracle home. See Also: "Configuring the Client Network" for a description of the configuration procedures performed
       Oracle Services for Microsoft Transaction Server	Enter a port on which the Oracle MTS Recovery Service will listen.

       The Summary window appears.

    5. Review the space requirements to ensure that you have enough disk space and click Install.

    6. Wait until the selected components are installed and any configuration tools have completed running.

       The End of Installation window appears.

    7. Click Exit to exit Oracle Universal Installer or click Next Install to install additional components.

       See Also: "Reviewing the Installation Session Logs" for a summary of your installation session Chapter 5, "Postinstallation Configuration Tasks" "Oracle9i Client Components" for a list of components installed with each Oracle9i Client installation type

    Oracle Internet Directory Installations

    The installation windows that appear when you select Oracle Internet Directory depend upon your computer configuration and which Oracle components are currently installed. Table 4-7 summarizes the steps you need to perform to install Oracle Internet Directory. Proceed to one of the following selections:

    Table 4-7 Oracle Internet Directory Installation Options  

    If Oracle9i database...	Then the...	Go to...
    Release 2 (9.2.x) is already installed in the same Oracle home, but Oracle Internet Directory release 9.2 is not installed	Using an Existing Instance window appears and you are prompted for the SID you want to use for Oracle Internet Directory	Step 1 of "Installing Oracle Internet Directory for the First Time"
    Release 2 (9.2.x) and Oracle Internet Directory release 9.2 are not installed on the computer	Database Identification window appears and Oracle9i database is automatically installed in the same Oracle home directory with Oracle Internet Directory release 9.2	Step 3 of "Installing Oracle Internet Directory for the First Time"

    Installing Oracle Internet Directory for the First Time

    After selecting Oracle Internet Directory in the Installation Types window, the Using an Existing Instance window appears. Follow these procedures to install Oracle Internet Directory:

    1. Select one of the following options:
       • To use the existing database from the current Oracle home for your Oracle Internet Directory installation, select Yes.

       • To create a new database for your Oracle Internet Directory installation, select No.

    2. Click Next.

       The Database Identification window appears.

    3. Perform one of the following actions:
       • If you are using an existing database, enter the SID of the existing database and click Next. Note that this database must reside in the current Oracle home directory.

       • If you are creating a new database, enter the values for the global database name and SID in the appropriate fields. Click Next.

       The Database File Location window appears.

    4. Enter a directory location in which to install the Oracle Internet Directory database files. These database files contain tables specific to Oracle Internet Directory that are created during configuration.

    5. Click Next.

       The Database Character Set window appears if Oracle9i release 2 (9.2.x) and Oracle Internet Directory release 9.2 are not installed. Accept the default value.

    6. Click Next.

       The Summary window appears. Review the summary information to ensure that you have enough disk space.

    7. Click Install.

       The Install window appears. The values in Table 4-8 are automatically set during installation.

       Table 4-8 Oracle Internet Directory Values Set at Installation  

       Setting	Value
       Use of an Encrypted Password	Yes
       Encryption schema	MD4
       Approximate number of directory entries to be stored in Oracle Internet Directory	Under 10,000
       Password of the Administrator Distinguished Name (cn=orcladmin)	welcome

    The Configuration Tools window appears at the end of installation.

    Table 4-9 lists the assistants that automatically start to create and configure the Oracle Net Services and Oracle Internet Directory environments.

    Table 4-9 Configuration Assistants with the Oracle Internet Directory Installation Type  

    This Tool...	Starts...	And...
    Oracle Net Configuration Assistant	If Oracle Net Services is not already installed in the currently-specified Oracle home	Automatically configures the Oracle Net Services environment See Also: "Configuring the Server Network" for a description of the configuration procedures performed
    Database Configuration Assistant	In all cases except when using an existing database in the Oracle home for the Oracle Internet Directory installation	Creates Oracle Internet Directory tablespaces and schema in the Oracle9i release 2 (9.2.x) database when installing Oracle Internet Directory in a new Oracle home that does not have Enterprise Edition installed. If a new database is installed, Database Configuration Assistant automatically starts and creates a database with an AL32UTF8 character set. At the end of the database creation process, you are required to set the SYS and SYSTEM passwords.
    OID Configuration Assistant	In all cases	Automatically starts the Oracle Internet Directory directory server, and configures the default schema and the Directory Information Tree to support various Oracle components.
    Oracle Intelligent Agent	If the database and Intelligent Agent are installed	Automatically starts the Agent service
    Starting Oracle HTTP Service	In all cases	Creates and starts the HTTP listener as a standalone process for the current session in non-SSL mode. Review the port settings and access URLs on the End of Installation window. The OracleHOME_NAMEHTTPServer service starts when you restart your computer.

    The End of Installation window appears.

    8. Click Exit to exit Oracle Universal Installer or click Next Install to install additional components.

       See Also: "Reviewing the Installation Session Logs" for a summary of your installation session

    Custom Oracle9i Management and Integration Installations

    The Available Product Components window displays all components available for installation when you select the Custom Oracle9i Management and Integration installation type.

    1. Select the check box of each component to install.

       Note: Only components with a check mark are installed.

    2. Click Next.

       The Component Locations window appears and enables you to select alternate locations in which to install some components.

    3. Click Next to accept the default locations. Otherwise, choose a component to enable a text box for changing the default location. Then, click Next.

       The Database Identification window appears.

    4. Enter the global database name and SID for the Oracle9i database.

    5. Click Next.

       The OID User Password Encryption window appears.

    6. Select whether or not to enable password encryption and click Next.

       The User Password Hashing Algorithm window appears.

    7. Select an encryption schema to use and click Next.

       The OID Administrator Password window appears.

    8. Enter a password.

       This password enables you to make all changes in Oracle Internet Directory.

    9. Enter the same password a second time and click Next.

       The OID Size Configuration window appears.

    10. Select the approximate number of directory entries to be stored in Oracle Internet Directory and click Next.

        The Create Database window appears.

    11. Select whether or not to create a new database during this installation session and click Next.

        If you selected to create a database, then the Database File Locations window appears.

    12. Enter the Oracle home name and directory path in which to install Oracle components in the Destination fields and click Next.

        Attention: Do not install Oracle9i release 2 (9.2.x) software into a pre-existing Oracle home.

        The Database Character Set window appears.

    13. Choose the database character set from the available options. By default, the database character set is automatically chosen based on the locale setting of the operating system.

    14. Click Next.

        The Summary window appears.

    15. Review the space requirements to ensure that you have enough disk space and click Install.

        The Configuration Tools window appears at the end of installation.

        Table 4-10 lists the assistants that automatically start to create and configure the Oracle9i database for use with Oracle Internet Directory.

        Table 4-10 Configuration Assistants--Custom Oracle9i Management and Integration Installation Type  

        This Tool...	Starts If...	And...
        Oracle Net Configuration Assistant	Oracle Net Services is not already installed in the currently-specified Oracle home	Automatically configures the Oracle Net Services environment See Also: "Configuring the Server Network" for a description of the configuration procedures performed
        Database Configuration Assistant	You select Oracle9i in the Available Product Components window and you selected Yes when prompted to install an Oracle9i database	Database Configuration Assistant automatically starts and guides you through a Custom installation to create a database with the AL32UTF8 character set. At the end of the database creation process, you are required to change the SYS and SYSTEM passwords.
        OID Configuration Assistant	You select Oracle Internet Directory in the Available Product Components window	Automatically starts the Oracle Internet Directory Server, and configures the default schema and the Directory Information Tree to support various Oracle components.
        Oracle Intelligent Agent	The database and Intelligent Agent are installed	Automatically starts the Agent service
        Starting Oracle HTTP Service	You select the Oracle HTTP Server in the Available Product Components window	Starts the HTTP listener in non-SSL mode. Review the port settings and access URLs on the End of Installation window.
        Oracle Workflow Configuration Assistant	You select to install Oracle Workflow in the Available Product Components window	Configures Oracle Workflow schema in the Oracle9i database You are prompted for the Workflow Account,Workflow Password, SYS Password, SYSTEM Password, install option, language selection, connect method, and connect string. Several MS-DOS command prompts automatically open and close. Do not manually close these windows, or you will interrupt the configuration process. See Also: Oracle Workflow Server Installation Notes for instructions on using Oracle Workflow Configuration Assistant

        The End of Installation window appears.

    16. Click Exit to exit Oracle Universal Installer or click Next Install to install additional components.

        See Also: "Reviewing the Installation Session Logs" for a summary of your installation session Chapter 5, "Postinstallation Configuration Tasks"

        Reviewing the Installation Session Logs

        The first time the Oracle Universal Installer runs it creates the SYSTEM_DRIVE:\Program Files\Oracle\Inventory\logs directory. An inventory of installed components and installation actions performed is kept in this directory.

        Log filenames take the form installActionsdate_time.log (for example, installActions2001-07-14_09-00-56-am.log).

        You can also view a list of installed components by choosing Installed Products on any window of Oracle Universal Installer. A window of installed programs appears.

        Note: Do not delete or manually alter the Inventory directory or its contents. Doing so can prevent Oracle Universal Installer from locating products that you install on your system.

        Deinstalling Oracle Components and Services

        This section describes how to deinstall Oracle components, utilities, and services.

        Note: Deinstalling Oracle9i JVM causes Oracle Universal Installer to remove the database and other products dependent on Oracle9i JVM from your system.

        This section contains these topics:

        • Stopping Oracle Services

        • Deinstalling Components with Oracle Universal Installer

        • Removing Oracle Keys from the Registry

          Note: Manually removing components is not recommended unless you exit Oracle Universal Installer during an installation. For example: Clicking Cancel Turning off the computer If the installation does not complete (that is, all required configuration tools do not run at the end) In these cases, Oracle Universal Installer does not register the installation in its inventory. However, files may have been copied to your Oracle home. Remove these files manually and restart the installation.

        Stopping Oracle Services

        You must first stop the Oracle Windows services before deinstalling Oracle components or removing any registry entries.

        To stop Windows services:

        1. Open the Services control panel:

           Choose Start > Settings > Control Panel > Administrative Tools > Services.

        2. If any Oracle services (names begin with Oracle or Ora) exist and have the status Started, select the service, and click Action > Stop.

        3. Click Close to exit the Services window.

        4. Exit the Control Panel.

        Stopping and Removing Oracle Internet Directory Services

        1. Stop the Oracle Internet Directory Server at the command prompt:

           C:\> oidctl CONNECT=NET_SERVICE_NAME SERVER=OIDLDAPD INSTANCE=SERVER_
           INSTANCE_NUMBER STOP
           
           

           where NET_SERVICE_NAME is the network connection to the Oracle Internet Directory Server and SERVER_INSTANCE_NUMBER is the instance number (this number appears in the Server List tab of Oracle Directory Manager).

        2. Stop the Oracle Internet Directory Monitor at the command prompt:

           C:\> oidmon STOP
           
           

        3. Remove the Oracle Internet Directory service OracleDirectoryService from the registry:

           C:\> oidmon REMOVE
           
           

        4. Follow the procedures in "Deinstalling Components with Oracle Universal Installer" to remove the Oracle9i database configured with Oracle Internet Directory.

        Deinstalling Components with Oracle Universal Installer

        This section describes how to use Oracle Universal Installer to deinstall Oracle components (which deinstalls them from the installer inventory) instead of removing them manually.

        Do not delete an Oracle home manually (for example, by deleting the directory structure with Windows Explorer or command prompt) because the components in that Oracle home remain registered in the Oracle Universal Installer inventory. If you then attempt an installation in the same Oracle home, some or all of the components selected may not be installed because the installer determines they are already installed.

        Oracle Universal Installer creates Windows services for Oracle components during installation. However, the installer does not delete services created by Oracle Net Configuration Assistant, Oracle Internet Directory Configuration Assistant, and Database Configuration Assistant.

        To deinstall components with Oracle Universal Installer:

        1. Ensure that you first follow the instructions in "Stopping Oracle Services".

        2. Choose Start > Programs > Oracle Installation Products > Universal Installer.

           The Welcome window for Oracle Universal Installer appears.

        3. Click Deinstall Products.

           The Inventory window appears.

        4. Expand the tree of installed components until you find the components to deinstall.

        5. Check each component to deinstall.

        6. Click Remove.

           The Confirmation window appears.

        7. Click Yes to deinstall the selected components.

           Note: A message may appear indicating that removing some components may cause other components to not function properly.

           The components are deinstalled from your computer. The Inventory window appears without the deinstalled components.

        8. Click Close to close the Inventory window.

        9. Click Exit to exit Oracle Universal Installer.

        Removing Oracle Keys from the Registry

        In rare situations, you may want to correct serious system problems by completely removing Oracle components from the computer.

        Remove all Oracle components from your computer only as a last resort, and only if you want to remove all Oracle components from your system.

        Oracle Universal Installer does not delete services created by Oracle Net Configuration Assistant, Oracle Internet Directory Configuration Assistant, and Database Configuration Assistant. In addition, several registry keys are not deleted.

        Note: You can use the ORADIM utility to manually deinstall an instance and services. See "Postinstallation Database Creation" of Oracle9i Database Platform Guide for Windows.

        Caution: Use Microsoft Registry Editor at your own risk. Incorrect usage of Registry Editor can cause serious problems and may require reinstallation of your operating system.

        To remove the Oracle Net Service registry entry:

        1. Log in as a member of the Administrators group.

        2. Ensure that you first follow the instructions in "Stopping Oracle Services".

        3. Start the registry editor at the command prompt:

           C:\> regedt32
           
           

        4. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and delete the OracleHOME_NAMETNSListener registry entry. Oracle Universal Installer automatically deletes all other Oracle Net Services.

        5. Exit the registry editor.

        To remove all Oracle components from a computer:

        Caution: These instructions remove all Oracle components, services, and registry entries from your computer. In addition, any database files under ORACLE_BASE\oradata\DB_NAME are also removed. Exercise extreme care when removing registry entries. Removing incorrect entries can break your system.

        1. Log in as a member of the Administrators group.

        2. Ensure that you first follow the instructions in "Stopping Oracle Services".

        3. Start the registry editor at the command prompt:

           C:\> regedt32
           
           

        4. Go to HKEY_CLASSES_ROOT.

        5. Delete any key that starts with Oracle, ORA, or ORCL.

        6. Go to HKEY_LOCAL_MACHINE\SOFTWARE.

        7. Delete the ORACLE and Apache Group keys.

        8. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services.

        9. Delete all keys under here that begin with ORACLE.

        10. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \Eventlog\Application.

        11. Delete all keys under here that begin with ORACLE.

        12. Go to HKEY_CURRENT_USER.

        13. Delete ORACLE.

        14. Go to HKEY_CURRENT_USER\SOFTWARE\ORACLE.

        15. Delete keys that start with Oracle or ORCL (if any exist).

        16. Delete any Oracle keys (if any exist).

        17. Exit the registry editor.

        18. Restart your computer.

        Updating the System Variable Path

        1. Go to Start > Settings > Control Panel > System > Advanced tab > Environment Variables.

        2. Choose the system variable path and modify the Path variable.

        3. Remove any Oracle entries from the path. For example, if JRE was installed by Oracle, remove the ORACLE_BASE\ORACLE_HOME\bin path and the JRE path. You may see a path similar to this one:

           C:\oracle\ora92\bin;C:\program files\oracle\jre\1.4.1\bin 
           
           

        4. Exit the Control Panel.

        Removing Oracle from the Start Menu

        1. Go to SYSTEM_DRIVE:\Documents and Settings\All Users\Start Menu\Programs.

        2. Delete the following icons:
           • Oracle - HOME_NAME

           • Oracle Installation Products

             where HOME_NAME is the deinstalled Oracle home name.

        3. Delete SYSTEM_DRIVE:\program files\oracle through Windows Explorer.

        4. Delete all ORACLE_BASE directories on your hard drive.

        5. Restart your computer.