Avoid problems when uninstalling IBM WebSphere Portal server


There are scenarios in which you have to uninstall WebSphere Portal for a particular reason. For example, you might have specified the wrong information in the Setup Manager during installation, or you used Secure way LDAP and now want to install Domino and use Domino LDAP. In these situations, you have to reinstall WebSphere Portal to make these changes, which means you have to first uninstall it.

Often uninstalling WebSphere Portal becomes a tricky task. The WebSphere environment has several Java processors running in the background, and even if you don't stop one of these Java processors, you can't successfully uninstall WebSphere components. If you have to uninstall WebSphere Portal, you can use the uninstaller that comes with WebSphere Portal, or you can also use the Windows Add/Remove Programs option.

Make sure you uninstall components in the following order:

1. WebSphere Portal
2. WebSphere Application Server
3. Secure Way LDAP
4. DB2
5. IBM HTTP Server

You can leave the gsktoolkit as it is. Don't mess with this file because it causes problems during your next installation.

After you remove all these components, reboot your machine. Then remove all physical directories from the machine, such as the C:/IBM/WebSphere directory, which contains WebSphere Application Server and WebSphere Portal information.

Remove the IBMWPO directory created by the Setup Manager during Portal installation last. You can find this file under the Program files in the IBM directory. Make sure you also check the registry under HKEY_LOCAL_MACHINE/SOFTWARE/IBM to confirm that no previous version information is available. If you follow all these steps, reboot your machine again, and you're ready for a fresh WebSphere Portal installation.

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