So, i just installed Empires mod today but when I went to launch it I got this error SteamStartup() failed: SteamStartup(0xf,0x0018E584) failed with error1: failed to take master pipe connection lock. I thought this might be something to do with my firewall but I checked and it is already allowed through. Any help would be great. Thanks
Have you tried turning it on and off again? Seriously, try restarting Steam and the restarting your computer.
deleting clientregistry.blob seems to be very universal solution it is located in your steam folder just saying, try it In this thread on steam http://forums.steampowered.com/forums/showthread.php?t=816997 Some people fixed it by deleting everything except steamapps in your steam folder (I would say keep steam.exe so you dont have to download it from the site again) but that probably just means that it was some single file doing it you can also try deleting any cache folders in steam (like appcache) before you do the whole delete thing
