I haven't had a chance to test it, but you could try using a relative path.
Try "./TechSuite/Tools/x64_Patch My PC/PatchMyPC.log"
./ would signify the current working directory of the Techsuite Executable, assuming that is going to try to find the log files and not a forked process or something. Verify the name of the tool folder as well within Tools, if it is x86 or includes all _ instead of spaces
I'm not sure it would work but its something you could try at least