MetaLang.exe virus on MetaTrader...

I'm getting the compiler unable to open error about once a day now and have to reinstall MT4 to 'fix' it. It always shows up again at some point. My McAfee virus software found the MetaLang.exe trojan horse virus but can only move it to the quarantine folder, not clean or delete it. Every time I try to reinstall MT4 McAfee finds the virus again. If I unistall and redownload/reinstall MT4, the compiler error shows up again as well and can't be used. Is anyone else having this problem?

Give this a try.
Uninstall MT4
run regedit
Then search metalang* or Meta*
When you find them , delete them.
Go to control panel/system/performance/system files/then select in one of those option - deactivate restore system files.
Then reboot PC
scan it once with AVAST FREE Antivirus ( Google for it )
scan it also Free Superantispyware ( google for it )
If all is well, go back to uncheck " deactivate system files "
Reboot PC
Install Metatrader all new.

Thanks Highway...I'm trying another option right now as well, I'll get to your momentarily..