I'm getting an error "Error 2738.Could not access VBScript run time for custom action ." when trying to install Parallels 6 on a Windows 7 64 bit machine. Looks like this has been a problem for several years with no resolution. http://forum.parallels.com/showthread.php?t=95469 http://forum.parallels.com/showthread.php?t=104131&page=4 Neither of the KB articles appear to address this on Windows 7: http://kb.parallels.com/en/5736 http://kb.parallels.com/en/6891 I tried this (similar to KB) but I don't have that registry key: http://blogs.msdn.com/b/astebner/archive/2007/06/07/3151752.aspx Anyway, I HAVE VBScript installed on my machine, and I don't feel comfortable changing the registry in order to work around what appears to be a longstanding bug in Parallels. I don't seem to be able to contact support without being a customer first. Sorry, but day one with Parallels has been a pretty negative experience. Any idea what to do? EDIT: I am installing as Administrator, as per the documentation.