OL97: Error Message: Outlook.exe Is Not a Valid Win32 Application
This article was previously published under Q258794
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When you start Outlook, you may receive the following error message:
Outlook.exe is not a valid Win32 application.
The Outlook executable file (Outlook.exe) may be damaged.
To resolve this problem, you must rename the Outlook.exe file, remove Outlook, and then reinstall Outlook:
Rename the Outlook.exe File
- Click the Start button, point to Find, and then click Files or Folders.
- Type outlook.exe.
- Click the letter for your hard disk, click to select the Include subfolders check box, and then click Find Now.
- When the file has been found, right-click the file name, and then click Rename.
- Rename the file to "Outlook.old."
- If you receive a prompt with a warning message, click Yes.
Remove and Reinstall Outlook
- Click the Start button, point to Settings, and then click Control Panel.
- In Control Panel, double-click Add/Remove Programs.
- On the Install/Uninstall tab, click either Microsoft Office 97 or Microsoft Outlook 97, and then click Add/Remove.
- In the Setup Maintenance Program dialog box, click Add/Remove, and then click to clear the Outlook check box.
- Click Continue to remove only Outlook components.
- When prompted if you want to remove the shared Windows Messaging component, click Keep to keep these components.
When the remove procedure finishes, you may need to restart your computer.
- Click the Setup.exe file from your Office 97 or Outlook 97 compact disk to reinstall Outlook.
Article ID: 258794 - Last Review: 12/05/2015 19:28:05 - Revision: 1.1
- Microsoft Outlook 97 Standard Edition
- kbnosurvey kbarchive kbprb KB258794