I've installed Vista 64 on my work computer and I don't have any major problems except for VPN. I have a Cisco VPN that will not install on my 64-bit machine. I have to run it in a VM. In there the connection is a bit flakey. I use VB6 everyday. There are some odd issues, but in general, I don't have a problem with it. - When you open a VBP that has a new control or a new version of a control, you get errors. Just close the VBP without saving and open it again. No problems after that. - If you open a VBP from a write-protected area, it will sometimes not let you "save project as...". - You get a "path not found" when double-clicking a VBP from a mapped drive if VB6 is set to "Run as Administrator". Just click open within VB and it'll work fine. - Run VB6 as administrator to compile DLL's and debug web pages. I think Microsoft screwed up with the syswow64 directory structure, but otherwise I'm happy with 64-bit. Fred.