how to debug thread in other process? CreateRemoteThread

[code_discuss]

I'm using CreateRemoteThread to do some code injections: taget.exe; load.exe(call CreateRemoteThread); code.dll I want to use load.exe to call CreateRemoteThread, the thread function is RemoteThreadProc, then in RemoteThreadProc, load code.dll. But now I have a problem of debugging. How can I see the code runing step by step in RemoteThreadProc()? I can't set a break point there! and then, now can I run the code step by step in code.dll?