Crystal Reports downgrade from .NET 4.0 to .NET 3.5

I've made some crystal reports in Visual studios 2010 using .NET framework 4.0. Framework 4.0 demands SP3 on windows XP which does not suite to my client. Now I am forced to downgrade to Framework 3开发者_如何学JAVA.5 and most probably using Visual Studios 2008.

Can someone Guide how this downgrade can be performed efficiently?

Check this question, it might help you:

c# change framework error

"You can try regenerating the file by right-clicking the .resx file and choosing 'Run Custom Tool' from the context menu."

I would stick with Visual Studio 2010 and use Project Properties Application Target Framework 3.5. If you are lucky there is not much to change besides removing the reference to Microsoft.CSharp...