Communicator 2007 Custom Command Parameters

Question

So i've played a little with the following

http://technet.microsoft.com/en-us/library/dd819982%28office.13%29.aspx

Basicly you add a bunch of registy keys that adds extra buttons in you communicator 2007, now it is kinda pointless if you can't add parameters, and the application does not seem to launch as soon as I add %user-id% %contact-id% to the path registry key.

I found 1 post on google that detailed he got the application to launch with no parameters, but none where parameters is included.

update

Apparently this functionality where broken with the R2 update