We did maintenance over ICM 6.0 SR9, to add new PG on the same hardware, so we un-install SR9, and ran 'setup.exe' from CD media, it kept popping uo alarm "ICM detects patch installed", so asked to un-install patch before running setup, then aborted the installtion program. However, I could not find where it got this information, the verison file under c:\icm show the base version, and no patch is under registry key as well. the icmsetup.log shows nothing on whereabout of the patch level. Eventually, I have to remove all ICM folder and registry keys, then re-installed the whole ICM on this node.
I wonder if anyone got the same problem like this, and know how ICM setup finds the patch?