Change AssemblyBuilder ImageRuntimeVersion

Question

Is it possible to dynamically create an assembly that targets a different runtime from the current AppDomain.

For example, from within a .NET 4.0 application I want to create a new assembly that targets .NET 2.0 instead.

AssemblyBuilder builder = Thread.GetDomain().DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.RunAndSave);
var version = builder.ImageRuntimeVersion; //"v4.0.30319"

Answer 1

If it still needed I found the following example:

MSDN Blog- Targeting the .NET 2 Framework when using AssemblyBuilder under .NET 4

Seems like you have to use the CLR native API.