1; Run Crossfire.exe and HGWC.exe in Administrator mode...
2; Dont use any compatiblity on crossfire.exe or HGWC.exe
3; Close all program wich scanning memory (except anti-virus and/or firewall)
For example: fraps (just switch off FPS showing) FreeCam totally uncompatible with Cf, i dont know the other video recorders...
Some anti-virus may affect on Cf, so add Crossfire folder to the anti-virus exceptions...
In the past (about 6 month ago) Cf showed this error when i ran skype...