How to install VS2008 and VS2010 versions side by side

[GreenQ]

I have installed both Visual Studio 2008 and Visual Studio 2010 on the same PC. Now I not so sure ho to install corresponding QT library versions on that PC. Any help is appreciated.

Also, what is the difference between VS2008 and VS2010 versions of the library? Do I really need to install both? Maybe I could just use Visual Studio plugin that integrates both versions of Visual Studio with QT?

Thank you!

[goetz]

To install both versions, give one or both of them a different installation directory (the default is C:\Qt\4.8.0).

There is no difference regarding functionality. There are technical reasons (ABI and name mangling, for example) that make libraries compiled for one version of Visual Studio incompatible for another version (this holds true for all versions). There are some dirty tricks to make it work, but it's highly recommended to use libs built against the respective MSVS versions.