Changing File Path On Runtime

Well basically, i had an app which i want to inject to another process, the app has settings which are stored on the loader as EOF data. If i inject to loader as a host, the app can read the EOF data but if i inject to another process the app cant read the EOF data which are stored on the loader. Hope you guys got what i mean. I don't know how to solve this issues =\

What i was thinking is like, inject app to other process, change file path of injected app to loader file path(this one i dont know how to do), injected app use GetModuleFileName -> return path to loader (if i dont change the file path, GetModuleFileName will return the file path of the process whose being injected), injected app open file (loader) -> read pe info -> find EOF = Settings data retrieved.

That is what i wanna do...



*Yea, my English sucks XD