Hello JuneMouse:
It seems that all those functions are related to files. But when talking about processes in memory...
I have found these links:
http://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/NT%20Objects/Section/NtCreateSection.html
http://undocumented.ntinternals.net/UserMode/Undocumented%20Functions/NT%20Objects/Section/NtMapViewOfSection.html
http://www.sysinternals.com/Information/NativeApi.html
The last URL shows api's that could perform tasks of loading sections of file, but I cannot find any speaking about loading "pieces of code" in memory from another process in the loader process.
Anyway, many thanks for your suggestion
Cheers
Nacho_dj