I will be performing an upgrade to my PDMWorks 2007. I currently have about 60 32bit installations and one 64bit workstation. I have never been able to get my 64bit client to work properly, actually not at all. My VAR told me I had to upgrade all of my workstations to 64bit clients and at that point I laughed to myself and left him out of the equation. Every time I try to run the 64bit client I get a version error. Does anyone have any 64bit experience that might be able to help?