Hi, I want to inject C code in my Exe, using a dll. The Dll will get the object from Exe and process the data. After its work, the data need to be passed back to my exe, so that it updates database or some local files. In these situations, I need my Userinterface also to get changed. All I need to do change in only my dll. Under any circumstance, I donot want my exe code to get modified. Thanks in Advance Rani