With Installshield 2012 spring, I'm trying to create a new MSI to unregister existing files--> overwrite files --> register (by extra at build) on Win 7 64-bit.
I tried to use a custom action to unregister the files using Regserv32 but kept getting permission issues.
"[Systemfolder]regsvr32.exe" /s /u "[systemfolder]\myfiles.dll"
I had no problem with older version of IS but this version doesn't like this.
Can't use cmd script to do anything? I thought it was a simple process but can't do anything with it.
Or any other ways to unregister existing files?