Used in all recent InstallShield programs, namely Developer 7.03 - full released is sent as update and there goes activation screen... The .exe is not wrapped in any way, but the whole activation stuff is in an activex, and I'm not that good at cracking this stuff. Ran IDA over the .exe and quickly located one suspicious point where the ax is invoked - patched a jump around this call - this got rid of activation prompt, but resulted in page fault when ISD was fully loaded.
Not that I'm abandoning at the first sight of trouble, but if anyone already played with InterLok activation through their AX API, then any insights would be really appreciated.

Thanks in advance.

I also got this target but after 4 hours hard work I got finally around it. I did not crack the InterLok protection but did circumvent it. You should also try that for a quick patch. Offcourse some InterLok insights would be welcome. It seems the InterLok stuff is located in a resource called PACE0000 (I don't remember it exactly but this should be it) inside IsAppServices.dll. Any help for the InterLok would help me too to make a real patch.