Fixing Outlook Calendar problem with creating new items.

The following steps helped me fix my Outlook so I could create new meetings.

Called stating the following problems.

- Creating Activities causes the following error.

"The messaging interface has returned an unknown error. If the problem persists, restart Outlook."

- Selecting a time range in the calendar, typing in a activity title "Lunch with Nancy" then pressing causes this error.

"Could not save item."

- New meetings that I am invited to ARE put on the calendar in a tentative mode

- I am able to 'accept' new meetings

- I am able to modify all existing meetings on my calendard.

- Only exists on one computer

Trouble Shooting Steps

- Created new profiles

- Created Cached and Online profiles

- Deleted all profiles and .OST files

- Uninstalled Office, reinstalled Office

Resolution

Remove several files that are NOT uninstalled during uninstall/reinstall of Office 2003.

I did not have to reinstall office, I removed these files and restarted Outlook and problem was resolved.

(these are safe to delete)

C:Documents and SettingstfiskeApplication DataMicrosoftForms

- delete all files.

C:Documents and SettingstfiskeLocal SettingsApplication DataMicrosoftFORMS

- Delete FRMCACHE.DAT this is the file that did it!

In addtion, if you are troubleshooting a problem and want to completely clean out a system the following are safe to delete.

To Completely uninstall Office, delete this folder, save PST files!

Document and SettingsApplication Data

- Forms

- Outlook

Documents and SettingsLocal SettingsApplication DataOutlook

- Extend.dat (gets corrupted also)

Hope that helps everyone else. This is a great way to clean up outlook / uninstall outlook before having someone have to rebuild their computer. 🙂