I have a strange issue here, I am trying to change the schedule for online maintenance for mailbox database, but when ever I try to open the tab for this it returns below error and closes. Exchange server 2007 sp3 Win 2003 std x64 sp2, fresh installed server a week ago, no errors in event viewer -------------------------------------------------------------------------------------------------------------- FX:{76dd58f7-54ba-42e3-a2e0-dbf4b674539f} Retrieving the COM class factory for component with CLSID {DB8117A6-E1C4-4184-BC39-E77AA120AC4A} failed due to the following error: 800703e6. exceptopn type: System.BadImageFormatException at Microsoft.Exchange.Management.SystemManager.WinForms.ScheduleControl.ScheduleEditorDialog.RunDialog(IntPtr hwndOwner) at System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner) at Microsoft.Exchange.Management.SystemManager.WinForms.ScheduleControl.<.ctor>b__0(Object , EventArgs ) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ----------------------------------------------------------------------------------------------------------------------- Thanks for your help in advance

Hi, Restart MS Exchange Information Store service and then try. Post the update. Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

Hi 1. FX:{76dd58f7-54ba-42e3-a2e0-dbf4b674539f} It seems to be .net error. You can try to reinstall .net. 2.I read this article about your error. It seems to be MMC error. Try to reconfigure mmc by deleting mmc.exe.config in system32 folder (first take backup of file). 3. Retrieving the COM class factory for component with CLSID {DB8117A6-E1C4-4184-BC39-E77AA120AC4A} failed due to the following error: 800703e6. Error: 800703e6: Invalid access to memory locationPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

2.I read this article about your error. It seems to be MMC error. Try to reconfigure mmc by deleting mmc.exe.config in system32 folder (first take backup of file). Thanks Terence I didnt tried it but this for sure MMC error, as I tried open mmc and added new snap in for exchange console and it works fine from there. but to reconfigure mmc, I didnt find any mmc.exe.config file in system32 folder, only mmc.exe files are there Thanks Gulab, this is not a Exchange issue but works fine as I explained above.

Hi You can post it to server management tool forum about MC error . http://social.technet.microsoft.com/Forums/en-us/winserverManagement/threads Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.