My company markets an application written in VB6. We have a client that runs an internally developed application developed with VB5 and they run Windows XP Professional on the systems that will house both appliations. My question is that if both applications utilize tyhe same file, different version, can we install the version used by our app in a different directory, register it, and their version of the file (located in the system directory) remain register, intact, and continue to be used by their app? (Of course, and our app still run?)