First published on MSDN on Aug 24, 2010
If you do a basic install of WSS 3.0, it installs SQL Embedded. There’s no option to remove this in Add/Remove Programs. The directions to do it can be found here. I’ve also pasted them below
http://technet.microsoft.com/en-us/library/cc708491(WS.10).aspx – Search for “Uninstalling WSUS 3.0 does not uninstall the database instance”
Uninstalling WSUS 3.0 does not uninstall the database instance
If WSUS 3.0 is uninstalled, the database instance will not be uninstalled. The instance may be shared by more than one application, and will cause other applications to fail if it is removed.
If it is necessary to uninstall Windows Internal Database, the following commands will uninstall the application:
32-bit platforms: msiexec /x {CEB5780F-1A70-44A9-850F-DE6C4F6AA8FB} callerid=ocsetup.exe
64-bit platforms: msiexec /x {BDD79957-5801-4A2D-B09E-852E7FA64D01} callerid=ocsetup.exe
Microsoft