Bummer that after all that work you couldn't get XP64 to play nice.
Yeah, I'm a bit bummed too.... it was a lot of time spent, and I expected better results.
I had been warned by Cornemuse back on page 1 of this thread that some apps simply would not run, but I'm seeing a lot of Windows components that won't run properly.
When I installed XP Pro 32bit some years ago, I was happy to see the option during setup to set the FAU size down to 512 bytes (if desired). This 64bit version doesn't make such an offering.
When using the Cmd Prompt, I have always preferred full screen and set XP up that way (from the shortcut options). This 64bit version has different dialog boxes than the 32bit and full screen is not an option so you're stuck in a little box. Who knows.... maybe there's a tweak, but why make it so difficult?
While in File Manager, if you hit "search" the default box that pops up wants to search for "People, Places, and Web." so you have to hit extra buttons to get to a file search. And then it doesn't find files that are right there where you just put them..... it's broken.
The last time I ran "sfc /scannow" on it, it wouldn't even boot to the "last good configuration". I had to boot "Safe" and go back to a restore point.
And of course there were also all the problems installing or running apps which I wrote about above.
So, I'm kicking the x64 version out, and being me I have to try installing the x86 version of XP Pro just to see if it was the OS, or the newer machine handing me all these problems.... (I think it was the OS).
I'll let you know... :b