I've created a WPF application afterwards i added some effects using expression blend.
Now when i try to run the application it wont run without "Microsoft.Expression.Effects.dll"
I really want to keep the application in one EXE file. is there anyway to do it?
You could embed the DLL into the EXE using Costura. It also provides a VS addin, which allows you to automate the progress of embedding the DLL.