_mwoltb.0.dll - At your option

%windir%\_mwoltb.0.dll

Improve boot up time Run a free scan to diagnose your PC and identify the system boottle necks slowing you down. Start Test

Fix Windows PC's Fast! Automated Software Repairs damaged & slow windows systems in 1 click.

Free Download

Description:

%windir%\_mwoltb.0.dll
_MWOLTB.0.DLL is related to Merriam-Webster Toolbar.
http://www.m-w.com/toolbar/