I'm running Win7 ultimate 64 fully up to date, with bootcamp 3.1 running on my 2009 imac. For some reason whatever software I try (alcohol 52, daemon tools, virtual clone drive) images mount, so I can see the files on them, but when I try to use these files/open an application I get this message or something similar: I've checked around as much as I can. Im definitely using the most up to date Win7 compatible versions of the virtual drive software, and after reading about a potential conflict with the SPTD layer (not fully understanding, just doing) I updated this to the latest 1.69 as well. Could this just be a problem for bootcamp users? Any help very welcome!