We've had various leads but haven't come to a clean solution yet. Our installation package for our software will install properly for administrators. But under some conditions, when the user logs into a non-administrator account to use the software for the first time, the Windows Installer launches. It almost appears as though something is set to "install on first use" and there is no apparent option for that in our Install Shield package. We have shut off the "advertise" feature so that the software should be completely installed.
Something else odd is that it tends to happen of NTFS systems, not FAT32. I realize there is file security on NTFS that does not exist on FAT32, but I can't see how that would affect "advertisment" or "install on first use".
This problem only seems to occur on some Windows 2000 machines.
Any ideas would be appreciated.