The only way to record gameplay is using the openGL/directx capturing program
Fraps but in order to have a suffecient, lag-free capture you have to have a pretty decent gaming rig. You can get the trial at
http://www.fraps.com. The trial will allow you to record a max of 30 seconds of footage at a time, while the full version will allow an infinite alloted time to capture. The trial also places a "www.fraps.com" water mark on the top center of your capture. While playing an fps counter will be placed at the top left of your screen (placement can be changed in settings). For healthy gameplay you should have 30-90 fps before recording. When you press the f9 key(default record key) your screen will be recorded and the fps counter will drop. If it drops lower than 30 fps, then you will have a choppy capture, but if it stays above 30 fps then you're gameplay will be smooth and the capture will be smooth. If there's anymore questions just PM me.
I've been thinking about getting back on H1 pc.. do you have xfire?