creating header files

[creative]

Hi ,I am new to this forum and hope someone help me.
My question is about how can I make a header file and give it to another programmer to make use of it. the problem is that I want to write only the prototypes in the header file (as library )and I don't want to give the .cpp file for preventing any changes to my library.
I am using visual studio 2008 express edition.

[Bazzy]

Compile it as a (static or dynamic) library, so you can distribute it in binary form