I want to draw this discussion to a close and vote. Here is my proposal.
A function can be implemented in ReactOS if:
1. There is documentation* 2. There exists a third party driver/application using the behavior
If such a document* or test case does not exist it must be documented before it can be implemented. Clean room-reverse engineering rules apply.
Documentation as defined as MSDN, OSR, DDK/PSDK example code, Probert docs, Published Book, PDB with driver or dependant test, clean room documentation written by some other developer than the one implementing the function or any documentation found via a google, msn or yahoo search. All documentation samples must be committed to SVN.
-- Steven Edwards - ReactOS and Wine developer
"There is one thing stronger than all the armies in the world, and that is an idea whose time has come." - Victor Hugo