Okay after gleaning a bunch of info from several sources I finally have a lightgun that works in Vista 64 and Mame 123u6! It still needs some major tweaking but I did manage to get the damn thing to work for the most part. Until EMS or someone comes up with a solution for their drivers for Vista this will have to do.
Basically if you have a bluetooth dongle, a Nintendo Wiimote and sensor bar (optional) you can make this function.
Download BlueSoleil driver software trial from
http://www.bluesoleil.com/download/ - some dongles are prepackaged with BlueSoleil - if not download this trial - it has everyhting you need for the wiimote as it is.
Download WiinRemote v2007.1.13 software from
http://onakasuita.org/wii/index-e.htmlInstall BlueSoleil software trial (the tial limits the data you can transfer bewtween BT devices to 5 MB which is more than adequate for our purposes) - note if you have a Microsoft BT wireless keyboard or mouse, its dongle cannot be made to work with this. In fact BlueSoleil will disable the BT Stack and your MS Keyboard and Mouse will be temporarily disabled. You can reinstall them under Control Panel/Hardware/Keyboard and reenable the MS dongle (which is a only has scaled down BT functionality in the first place - just make sure you have a spare PS2 or USB keyboard lying around).
Install WiinRemote v2007.1.13 - you can now use your Wiimote as a fully functioning mouse. This software is cool because it allows you to either control the pointer/cursor via the Wiimote's built in motion sensor or traditional infrared sensor bar. I am using it with my EMS Topgun sensor bars as the moment and it works not bad in terms of tracking. I find the Wiimote tracking much smoother than the TopGun!
The other thing you can control is the WiiMote buttons can be programmed to function however you like - eg I set the A button to emulate left mouse click once and B button to emulate right mouse click once. You can also set a button to toggle on/off the Wiimote controlling the pointer - very useful.
Any way I need to do some more extensive testing and calibration to get the set up proper. Once that is done, I'd like to either strip the Wiimote and hack my TopGun to convert it fully or I am sure soemone has come out with a Wiimote gun already that could be used.
One other final though about what's realy cool here - no more umbilical cord!
Rich
PS - Ill post some pics/vid once I get the tweaking sorted out.