WRusr.dll error message, failed to open the web browser

I am running Windows 7 and get this message error every time I try to open Internet explorer or Firefox:

"WRusr.dll is missing on your computer."

I can always connect to the network (outlook still downloads e-mail, for example).
I recently installed updates.
I run Webroot Secure anywhere, I noticed some Internet Research (and a search on this forum) seems to be related in any way to this WSusr.dll thing, but can't find any solutions.
I did a clean boot, as was suggested in another post on this forum, but the problem persisted. Any help would be appreciated, because I still can't use a web browser.

Hello

I uninstalled and reinstalled Webroot and the problem seems to have stopped. Thank God!

Tags: Windows

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