How to resolve 'Omi9.dll' error in MS Outlook after upgrading to Windows XP

Microsoft Outlook is a widely used business and personal e-mail management application. Apart from basic e-mailing tasks, it lets you conveniently schedule appointments, share your calendars and manage your work schedule. However, at times you might encounter weird error messages while accessing your Outlook account. One such typical situation is when you upgrade your system to Windows XP. The strange behavior displayed by Outlook can be credited to various reasons like corrupt Outlook profile, missing application files or corrupt/damaged PST file. Since it becomes impossible for you to access data, you must consider adopting various corrective measures. If everything else fails and you are not able to isolate the problem, try employing a third-party Outlook PST repair software. You never know it might do wonders for you by solving the problem within minutes.

Consider a scenario, wherein, you do an upgrade to Microsoft Windows XP, and start Outlook 2000. The Outlook doesn't start and you receive the following error message:

"Cannot start Microsoft Outlook. A required component is missing: OMI9.DLL. Please install Microsoft Outlook again."

Cause

You may encounter the above error message in the following conditions:

• If your Outlook is configured to run in compatibility mode
• If your user profile is corrupt
• Or if your PST file is damaged or corrupt

Resolution

You must execute the following steps to overcome the error message, and if need arises consider observing the Outlook PST repair steps as well:

• Locate Outlook.exe file and remove the compatibility mode attribute
1. Click Start, go to Search
2. Click All files and folders
3. In the All or part of the file name box, type Outlook.exe, and click Search. By default the Outlook.exe file resides in the following folder:
C:\Program Files\Microsoft Office\Office10\
4. Right-click the Outlook.exe file, and click Properties
5. Click the Compatibility tab, and click to clear the Compatibility mode check box
6. Click Apply and click OK
7. Start Outlook

• If the above-mentioned steps do not resolve the issue, then you must create a new user profile and attach your PST file to this new profile.

• If nothing works, then it is evident that you have a corrupt PST file. In order to address this issue, you must opt for a professional and advanced PST repair software.

Such tools repair corrupt PST files and employ improved scanning algorithms to extract data from them. The Outlook PST Repair is one such easy-to-use and reliable application which repairs damaged or corrupt PST files in minimal time and via simple steps.