HOOK C# method in DLL

Question

I have C# application which calls SUM() function from a DLL.

I want to hook that SUM() function in the DLL and manipulate the instructions by injecting my DLL into the process of C# application.

Please reply.

Answer 1

Please see this http://www.codeproject.com/Articles/463508/Net-CLR-Injection-Modify-IL-Codes-on-Run-time

You can do that by modifying the IL code on runtime