Ok mezz64, I've managed to make it work with the debug!!
Now the problem is that it doesn't cooperate with RoadRunner (30/7/09 but also tried a 09/2008 version). I also installed the latest version of RideRunner but no luck there either.
Can you explain the steps to install your plug in? (I've read the thread twice!)
Finally, while the debug starts the ELM correctly, when running RR the ELM seems dead. No lights, no nothing. Nothing moves.
PS1: In RRConfig, under Plugins page, it shows that the dll is registered. Sometimes it shows "obdmpg", others ",obdmpg.dll".
PS2: In my menu.skin I've added X,obdmpg and also a label for rpm and conn.
PS3: Using WinXP SP2, with your 1.4.1 version