I'm guessing the problem is along those lines. The installer MSI puts the files in the correct locations for 32-bit binaries [syswow64 and program files (x86)]. Everything appears kosher along those lines, but it's just not working. My fear is that Windows will only let a 64-bit DLL hook password changes. I've found similar information at http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=993126&SiteID=17 Are there any plans to create x64 binaries of the PassSync package? Thanks, -richard On 1/5/07 3:26 PM, "David Boreham" <david_list at boreham.org> wrote: > Richard Hesse wrote: > >> Has anyone had any luck getting Windows 2003 Server x64 edition to sync with >> FDS? FDS will successfully pull down new objects from AD, but the passwords >> are not synchronized. Also, it appears that passhook.dll isn't functioning. >> The logfile indicates perpetual waiting for an event. It doesn't catch any >> password changes that occur. Yes, password complexity is enabled at the >> domain level (it is on by default in 2003 x64). >> >> > Random guess, but do you need a 64-bit version of the passhook dll ?