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Microsoft Office Window Class Names

written by Mark Rowlinson - Last updated Oct 2004

The following is a fairly comprehensive list of the window class names in use in Microsoft Office applications.

ApplicationClass Name
Access 97OMain
Access 2000OMain
Access XPOMain
Excel 97XLMAIN
Excel 2000XLMAIN
Excel XPXLMAIN
FrontPage 2000FrontPageExplorerWindow40
FrontPage XPFrontPageExplorerWindow40
Outlook 97rctrl_renwnd32
Outlook 98rctrl_renwnd32
Outlook 2000rctrl_renwnd32
Outlook XPrctrl_renwnd32
PowerPoint 95PP7FrameClass
PowerPoint 97PP97FrameClass
PowerPoint 2000PP9FrameClass
PowerPoint XPPP10FrameClass
Project 98JWinproj-WhimperMainClass
Project 2000JWinproj-WhimperMainClass
Visual Basic Editorwndclass_desked_gsk
Word 97OpusApp
Word 2000OpusApp
Word XPOpusApp
Userform 97ThunderXFrame
Userform 2000+ThunderDFrame