Thrall, Bryan wrote: > ... And in fact, disabling DEP for setup.exe fixes the problem. So, it > looks like setup.exe is trying to execute some memory that Windows > thinks it shouldn't be (the invalid this pointer, probably, but why then > is it invalid at that point and valid after the segfault?).
Setup.exe does contain some self-modifying code. It is in the file autoload.c, and deals with automatic loading of certain DLLs not present on all Windows versions. Glancing at it, it looks very 32-bit specific. It seems fairly miraculous that it works at all on LP64, actually, considering it casts pointers to int. Max.
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