I wonder, could this be a related issue?


Maybe system() does a GetModuleFileName() call internally. I <i>have</i> been using the 32-bit version of Fossil on my 64-bit OS. If Win7 64-bit screws with 32-bit GetModuleFileName() calls, a simple recompile with MinGW-w64 might fix the problem.

Well, probably not. But I'm hoping for an easy fix. :P