You receive the following error message when you try to visit a Windows SharePoint Services 3.0 Web site:
Could not load file or assembly ‘Microsoft.Office.DataParts, Version=188.8.131.52, Culture=neutral, PublicKeyToken=71e9bce111e9429c’ or one of its dependencies. The system cannot find the file specified.
You need To restart IIS services.
In IIS Manager, right-click the local computer, point to All Tasks, then click Restart IIS.