Not sure about how to prevent the in-built recorder from crashing the game. It only happens to me now after I've left it recording for a long time.
The easiest way to get FRAPS working is to use FRAPS Version 3.1.2 or earlier.
There are other work-arounds using later version of FRAPS, that I can't remember the details of, discussed here -
http://forum.1cpublishing.eu/showthr...ighlight=fraps