The mc1.6.1_update.exe file you have requested: Modifications / Total Conversions / Merciless 1942 / Merciless Mod Fix v1.6.1 - 80.68kb is not available. Perhaps try browsing all files for the game Battlefield 1942 and upload any files you want to share or are missing. This is the only information we could locate:
This is only a small fix to get the switcher workin with the 1.6.1 update. All you have to do is install to turn on and off MC.