De meest interessante info vond ik op pagina's van Scott Hanselman, die volgens de "About me" info wel voor Microsoft werkt. Uit de eerste [url=http://www.hanselman.com/blog/UpdateOnNETFramework35SP1AndWindowsUpdate.aspx]interessante pagina:Will the .NET Framework 3.5 SP1 break my 2.0 apps? Almost certainly not. Why Not? Remember that 3.5 (and 3.0 before it) all have the 2.0 CLR at their core. If you want excessive detail on this, I've got it. Because the 2.0 CLR is the engine underneath and 3.0 and 3.5 are primarily additive*, there's inherently high application compatibility between these releases. Realize that 2.0, 3.0 and 3.5 are not different products, no matter what anyone says. They are not different "Side By Side" releases, like 1.x and 2.0 were. They are evolutionary; if anything, our naming could have been better (you think?), but rather each adds functionality to the one before it. They are really additive releases to the same core product. Dat "Almost certainly not" is niet juist, want Scott ...