Recommended solution has been found Size of Protocol Software Database: 97,989 and updated on March 6 2015.
Windows File Association has located the following solution regarding this protocol.
Solution:Repair Protocol Now
Download Time: 3.2 sec
Associated Applications: Various
More information about the download: Once fully installed, the RegCure Pro software automatically repairs corrupted & failed protocol files.
Follow the 5 Easy Steps Below to Fix: wlmailhtml
Download RegCure Pro Installer Here
Click on the RegCureProSetup.exe file
It will ask "Do you want to allow this program to make changes to your
computer?" Click "Yes".
(Alternately it might ask you to Click "Run")
When prompted click Next > I Agree > Next > Finish.
After the Free Scan is complete,
Click the green "Fix All" button