What paths are guaranteed to exist on a Windows Server 2008 R2 instance? A client is requiring that some instructions specify exact paths in all cases. (The person executing said instructions is not supposed to have to decide on any path themselves, even when the path makes absolutely no difference.) So I need to know what paths I can rely on to be there. It's fine with me if they involve environment variables, but they need to be variables guaranteed to hold an existing path. (That is, no modification to a path that doesn't exist possible.) Or are there no guaranteed paths?