Manually removing InfoSphere Information Server from the repository tier (Windows)

If you cannot remove suite software by using the software removal program, then you must manually remove files and directories from the repository tier computer to ensure that the product is completely removed. Completely removing these files and directories is important if you plan to reinstall the suite.

Procedure

Back up the computer.
Open an elevated command window:
1. Click Start > Search.
2. In the Search Results box, enter cmd and press Ctrl+Shift+Enter.
3. Click Continue to accept the prompt asking for your permission to continue.

If you previously installed older versions of IBM® InfoSphere® DataStage® or InfoSphere Information Server clients, Windows registry keys might remain on the system after you uninstall the clients. If you have uninstalled all InfoSphere DataStage or InfoSphere Information Server software, delete the following registry keys:

Depending on the version of software you have installed, only some of the following keys might exist.

HKEY_CURRENT_USER\Software\Wow6432Node\Ascential Software
HKEY_CURRENT_USER\Software\Wow6432Node\IBM\InformationServer
HKEY_CURRENT_USER\Software\Wow6432Node\IBMWebSphere Application Server Network Deployment 
HKEY_CURRENT_USER\Software\Wow6432Node\DB2
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Ascential Software
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\IBM\InformationServer 
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\IBM_DataStage_Flow_Designer 
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\information.server* 
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\IM-IBM WebSphere Application Server*
HKLM\SOFTWARE\Ascential Software\ASBNode
HKLM\SOFTWARE\Ascential Software\DataStage Client
HKLM\SOFTWARE\Ascential Software\DataStage Multi-Client Manager
HKLM\SOFTWARE\Ascential Software\Documentation Tool
HKLM\SOFTWARE\IBM\InformationServer

If you used the Db2® database system as the metadata repository, delete the following accounts:
- The Db2 administration server user. Delete this user only if you are also removing Db2. The default user is db2admin.
- The owner of the metadata repository. The default user is xmeta.
- The owner of the IBM InfoSphere Information Analyzer analysis database. The default user is iauser.
If you used an Oracle database system or a Microsoft SQL Server database system for the metadata repository, use an Oracle database system command or a Microsoft SQL Server database system command to drop the metadata repository user and schema.
If you used the InfoSphere Information Server installation program to install the IBMDb2 database system:
1. Remove the Db2 database system by using the Add or Remove Programs utility in the Windows Control Panel.
  If Db2 cannot be removed by using the Add or Remove Programs utility, remove the Db2 database system by running the command db2unins.bat /f in the bin directory of your Db2 database system installation location.
2. Remove the GSK7 entries from the PATH environment variable.
3. Delete the following directories:
  
  Db2 installation directory
  
  The default directory is C:\IBM\sqllib.
  
  Db2 installation drive
  
  The directory is x:\DB2, where x is the drive where you installed the Db2 database system.
  
  Db2 users directory
  
  The default directories are %ALLUSERSPROFILE%\Application Data\IBM\DB2 and %ALLUSERSPROFILE%\Application Data\IBM\DB2History.
Delete the InfoSphere Information Server installation directory.
The default directory is C:\IBM\InformationServer\.
If only the most recent version of the clients are installed on this computer, back up your registry and then delete the \HKEY_LOCAL_MACHINE\SOFTWARE\Ascential Software and \HKEY_LOCAL_MACHINE\SOFTWARE\IBM\InformationServer registry keys.
Delete the following temporary directories that contain log files for the installation program.
```
%TEMP%\ibm_is_logs
%TEMP%\ISInstall*
```
Note: If you chose a different directory for the temporary files, delete that directory instead of the default directories.

Delete the Windows Start menu shortcuts from the following directories:

C:\Documents and Settings\All Users\Start Menu\Programs\
  IBM InfoSphere Information Server\
C:\ProgramData\Microsoft\Windows\Start Menu
%ALLUSERSPROFILE%\Start Menu\Programs\IBM InfoSphere Information Server\

Remove any remaining InfoSphere Information Server users and groups if you are not using them for other purposes.
Restart each computer after you remove the suite.
Microsoft Windows might not be able to remove some files and services until the computer is restarted.
Attention: Do not perform a new product installation before restarting each computer. If you reinstall the product before restarting your computer, the new installation might fail.