Hello - I have an XP Pro SP3 machine with tons of applications installed, that I need to upgrade to Vista, and then to Win 7 Pro. There is 1 compatibility issue preventing the upgrade, which is it wants PowerShell 1.0 to be uninstalled first. The problem I'm having with that is that Powershell is not listed ANYWHERE as a program, hotfix, or update in the Add/Remove list. Also, XP is not allowing me to back off SP3, which I think might include the PowerShell. I tried removing the Powershell registry key, but it still fails the compatibility check. Any ideas out there on how to get around or remove Powershell 1.0 to upgrade to Vista?