"I had to find a correct setup of Visual Studio" Perhaps I'm not understanding you correctly, but do you mean by this? You're not talking about project files a

"I had to find a correct setup of Visual Studio" Perhaps I'm not understanding you correctly, but do you mean by this? You're not talking about project files are you? Also, if you don't want to upload new binaries for an ASP.NET website, you can add new .CS / .VB files to the App_Code folder which is subject to JIT complilation.