ACPI Upgrade Workaround...
Guys, I have a simple way to upgrade XP to Vista. Parallels is working on the fix, but until then here is all you need to do:
1) Make sure you are using build 3150
2) Set your Parallels OS to Vista
3) Boot up to your XP SP2 OS
4) From a CMD prompt, rename C:\Windows\System32\hal.dll to hal_std.dll
5) From a CMD prompt, copy C:\Windows\ServicePackFiles\i386\halacpi.dll to C:\Windows\System32\hal.dll
6) Uninstall Parallels Tools
7) Reboot (XP may ask you to activate again - no need if you are upgrading to Vista)
8) Let changes detect and complete (but cancel Found New Hardware), Reboot (again)
8) Run Vista Setup/Upgrade Program
9) Install Parallels Tools after Vista Upgrade is complete
10) Kick-back and enjoy the wanna-be Mac OS called "Vista"
