Microsoft KB Archive/916420

= Error message when you start Groove Virtual Office or Groove Workspace: &quot;Invalid Class String&quot; =

Article ID: 916420

Article Last Modified on 2/20/2007

-

APPLIES TO


 * Microsoft Office Groove 2007
 * Groove Virtual Office 3.0 File Sharing Edition
 * Groove Virtual Office 3.0 Professional Edition
 * Groove Virtual Office 3.0 Project Edition
 * Groove Virtual Office 3.0 Trial Edition
 * Groove Virtual Office 3.1 File Sharing Edition
 * Groove Virtual Office 3.1 Professional Edition
 * Groove Virtual Office 3.1 Project Edition
 * Groove Virtual Office 3.1 Trial Edition
 * Groove Workspace 2.5 Preview Edition
 * Groove Workspace 2.5 Professional Edition
 * Groove Workspace 2.5 Project Edition
 * Groove Workspace 2.5 Standard Edition

-



SYMPTOMS
When you start Microsoft Office Groove 2007 or an earlier version of Groove, you receive the following error message:

Invalid Class String.



CAUSE
This issue occurs because the Jscript.dll file is missing, is unregistered, or is corrupted. The Jscript.dll file may become corrupted when you reinstall software that registers the file. For example, the Jscript.dll file may become corrupted when you reinstall Internet Explorer.



RESOLUTION
For Groove to function correctly, you must replace or register this file.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

831430 Several dialog boxes are blank

Additional query words: TCN-01805 Groove2007

Keywords: kbprb kbexpertiseinter kbtshoot KB916420

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.