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I'm running Outlook 2007 using hosted Exchange and everytime I try to go to the "calendar" screen Outlook hangs. I have to kill the process and restart Outlook.


  • Fully patched Office 2007
  • No third-party Outlook plug-ins
  • Windows 7


  • Tried reboot
  • Tried a repair/reboot
  • Tried Outlook.exe /cleanviews
  • Confirmed I can load my calendar in OWA
  • Renamed (to force recreation) of OST file
  • Tried deleting outcmd.dat
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Have you talked to the host? This may be server-side... – nicorellius Jun 21 '10 at 19:09
Have you just tried to delete the profile and create a new one? That might fix the issue... and don't check "cache mode" – r0ca Jun 21 '10 at 19:30
Try this:… – user3463 Jun 21 '10 at 19:39
40858 didn't work, thanks though; I'll contact host. – Justin Jun 21 '10 at 21:26

Microsoft answers this.

2nd result for Google: exchange calendar slow.

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That QB article is for O2000, and describes Outlook starting slowly. My Outlook does not start slowly. It runs quite fast. – Justin Jun 21 '10 at 18:40

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