You can force it down to an older XP compatibility mode, but even if you choose something newer, the highest it will actually go is Vista. So, in Win8 i have to run as compatibility for Win7 and in Win7 i have to run as compatibility for XP or Vista I don't know anything at all about the specific plugin you're running, but I can at least tell you this: When running on any operating system newer than Vista (7, 8, 8.1), using any version of SketchUp (8, 2013, 2014), SketchUp automatically executes in Windows Vista compatibility mode. Ran SU2014 on Win7 with compatibility set to Vista SP2 no crashes. Gohch wrote:ok, this is really odd, i ran SU2014 in Win7 and the crash occurred, and then i ran SU2014 on Win7 again with compatibility mode set to XP(service pack 3) and no more crashes.