If I have ver 1.1 on which I think it came w/ Office XP, when I put on 2.0, should I remove it or I can have multiple versions on my laptop? A new app I'm installing need ver 2.0 I read somewhere that apps requires the dot net framework will need to have exact version of it. It takes up space so I want to remove the old one if that doesn't affect any apps that are using it.