"Could not install the custom actions. The object could not be found." Error Starting Outlook


When you open any item in Outlook, you may receive one of the following errors:

"Could not install the custom actions. The object could not be found."


"Outlook cannot open this item. The object could not be found."

when you click OK to the error the item opens.


This problem can occur if either of the following are true:

  • Your frmcache.dat file is corrupted
  • You are missing one or more .cfg files from the following folder:

\Program files\Microsoft Office\Office12\Forms\1033

Note: The above path is for a US English install (1033). The folder you use will vary according to the language of Office you are using.

Outlook uses the .cfg files as the default forms for Outlook items and rebuilds the forms cache file with these .cfg files in most situations. If these .cfg files are missing then Outlook cannot create a new frmcache.dat file or repair a corrupted one.


Use one of the following methods to resolve the problem:

Method 1: Fix this problem automatically

To fix this problem automatically, click the Fix this problem link. Then, clickRun in the File Download dialog box and follow the steps in this wizard.

Microsoft Fix it
Fix this problem
Microsoft Fix it 50580

Note this wizard may be in English only; however, the automatic fix also works for other language versions of Windows.

Note If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD so that you can run it on the computer that has the problem.

Method 2:Delete the frmcache.dat file and start Outlook

  1. Exit Outlook.
  2. In Windows Explorer, open the following folder (depending on your version of Windows):

    Windows XP

    C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Forms

    Windows Server 2003, Windows Vista, or Windows 7

  3. Delete theFrmcache.dat file.
  4. Start Outlook.

Method 3:Repair your Office installation.

For detailed instructions on installing and repairing Office, see the following Knowledge Base Article:

How to install the individual 2007 Office features or to repair the installed 2007 Office programs 

More Information

For additional information on the Outlook forms cache, please review the following Microsoft Knowledge Base article:

919596 How Outlook 2007 uses the forms cache and how to troubleshoot forms cache problems