Hello,
same problem, AHP windows error and must close. Background, VISTA premium.
Nothing worked, no reinstall, no replace files.
so here is what I did to fix the entire problem:
boot to vista install disk, go to command prompt, c: to get to C drive, chkdsk /r, it took about an hour to do complete check , exit out and reboot, AHP worked just as before EXCEPT, had to reinstall about half of my Plug-in's, Registration info was still intact so everything worked as before.
bit of advice, when you purchase any AHP main program, or plugins SAVE that email, the link allows you to re-download and install the software without having to go to Customer service as that is almost non-existent.
I have quite a few x-10 products, Cameras, modules Vanguard software etc, on the most part I am pretty satisfied with the products, a bit frustrated sometimes (VA11A, had to use the user forum workaround to get it to work with VISTA) but everything pretty much works.
good luck
Network8888