SHAREA~1/Mediabar/datamngr reappears after deletion

I had a BHO infection after being hijacked by a fake Shareaza site several months ago. Ad-Aware removed the infection, but each time I have restarted the machine the directory SHAREA~1/Mediabar/Datamngr appears in my Program Files(x86) folder. I deleted it and shredded the recycle bin, but the next time I restart, it appears again. The directory is empty, but I would like to prevent it from reappearing each time I restart the machine. I am running Windows 7 Pro 64-bit, with AVG, Ad-Aware, IObit Advanced System Care, SpywareBlaster, and Spybot S & D. None of these tools have been able to remove whatever is causing the problem. Please help!