Hi I want to find out for which version of .NET Framework my code gets compiled to. Id it the .NET version installed on the system or the version in VS Help->About? I'm leaning to the second, but just want to make sure. Thanks PS Tried googling this, but seemed to ask the wrong question, as "What version of .NET is my software compiled" or any alternative yields anything but what I want. And I can't seem to find the right keywords. PPS And for those wondering it is C#

Regardless, basically all versions released since 2.0 have been binary compatible with each other. The only major difference is what is contained in each library. Because of this you can configure which version of the .NET framework you wish to compile against from your project properties page. In the Application 'tab' look at the 'target framework' field.