“The command is not available. See the program documentation about how to use this extension.”

A user may get this error if he/she tries to edit their Out of Office status. For example, a user I dealt with got this error when trying to turn her Out of Office off.

Example: “I’m trying to turn my Out of Office off but it’s coming up with an error.”

Resolution: To fix this issue, take the following steps:

  • Quit Outlook if it is running.
  • Press CTRL+ALT+DELETE, and then click Task Manager.
  • On the Processes tab, verify that Outlook.exe does not appear in the list of processes. If it does, click Outlook.exe and then click End Process.
  • On the File menu, click Exit Task Manager.
  • Click Start, and then click Run.
  • In the Open box, type regedit and then click OK.
  • Locate and then click the following registry key:
  • Right-click the Resiliency subkey (if it exists), and then click Rename.
  • Type Resiliency.old, and then press ENTER.
  • Quit Registry Editor.
  • Start Outlook, and then click Out of Office Assistant on the Tools menu.