Hi, After three years, I am suddenly getting the above error. The error number is -3204, and during the build process the error occurs at the part where the Display Icon in the Control Panel is being extracted for ARPProductIcon.exe. My Display Icon field points to an ICO file that has been in use since 2010. The versions are "Installshield Premier Edition SP1 with hotfix 52410" and "Windows 7 Enterprise SP1". The problem started suddenly yesterday. I have 37 different projects (which all result in DLLs, because these are Office add-ins) and the error occurs in all the projects I have tried so far (including 32-bit and 64-bit). I repeat that prior to yesterday, for the last three years everything was perfect, and builds were done on a mostly weekly basis. Automatic updates of the OS are not allowed, but in an attempt to fix the problem I have done the following: Rebooted Ran chkdsk Ran Disk Cleanup Updated the OS Ran a "Repair" operation from Control Panel on the Installshield build Manually deleted the temporary build folders in the Installshield project folder Still no joy. So, I began changing the ICO file to other ones (including pointing the Display Icon field to ISDEV.exe). No icons are being successfully extracted from ICO files or EXE files. If I take the ICO file out, then the project builds successfully. I have checked the ICON table in the Direct Editor, and there is an entry that looks normal: "[ARPPRODUCTICON.exe] [Binary Data] [MyICOFile.ico] [0]". To be safe, I have deleted (dropped) that row, then tried a rebuild. I also tried adding the ICO again from the Project Assistant view instead of the Installation Designer view. Does anyone have any experience with this error or does anyone have any suggestions to get this working? Thanks! Mike ... View more