I don't have much experience with setting up the development tools but I gave it a go to get us started; I started a project for this on Google Code: http://code.google.com/p/amv-codec-tools/
It's the first time I use Google Code so I don't know if this is the best choice, but I thought Dobrica suggested this.
I think it's best if everyone who's interested in the project signs up there; I will notify Dobrica and Reynaldo about this too.
Thx Alex; could you put the DLL source code and stuff up on the project page as a download ? Do you feel like helping out with the project as well ?
I'll see you at Google Code !