Messenger Sharing USN Journal Reader – USNSVC.DLL
Usnsvc.dll and usnsvcplus.dll will be found in your c:\Program Files\MSN Messenger\ folder. They install as the Messenger Sharing USN Journal Reader Service. This file will be installed if you're running MSN Messenger 7 with the Microsoft Journal Viewer and need support for handwriting capabilities.
You'll find the latest version of MSN Messenger at http://messenger.msn.com/Xp/Default.aspx. More information on the Journal Viewer can be found at http://www.microsoft.com/downloads/details.aspx?familyid=fad44098-8b73-4e06-96d4-d1eb70eacb44&displaylang;=en.
Safe
Microsoft