msls31.dll error file missing

this error causes the chrome address bar to go black . msls31.dll file missing after a windows 7 update.
msls31.dll (Microsoft Line Services library file)
https://www.google.com/search?q=msls31.dll&ie=utf-8&oe=utf-8&aq=t


so trying to run some ms forum soltutions
http://support.microsoft.com/mats/windows_update/

http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_update/windows-7-update-problems/316538a5-a03b-4d7e-878f-cfa14b3cd338?msgId=450738f2-b71f-4071-b373-385966827b41


SHA256: 33e9256acc4ea747177ff0922fca679849f89f695e469bb8c8f25bd5b5b1a583
File name: msls31.dll