yinhu.dll was a fun one. redeption42.exe lots of 6letters.3letters ones (tcfkwi.exe and .qwe) dcom.exe dcomserver.exe smss.exe in the windows directory (not win process).
Just a whole barrel o fun. in any case, the 'normal' process I use is try to delete the offending file right off. If it does not work, install 'unlocker', then cacls