The Office File Validation AddIn for Office 2003 and Office 2007 has appeared on Microsoft Update as an important update. It has a disastrous effect on. Other programs by Microsoft. Microsoft Office File Validation AddIn Microsoft Office Professional Plus 2010 Microsoft Office Enterprise 2007 Microsoft Office. Learn how to write a simple Outlook addin and test it locally. Beware the Office File Validation Add In for Office 2. Just to correct the above, the first time you posted the key, it was correct there should be a Policies in the above key. HKEYCURRENTUSERSoftwarePoliciesMicrosoftOffice1. ExcelSecurityFile. ValidationEnable. On. Loaddword 0. Other than that, it worked correctly and solved a big on going head ache for me so thanks for the help all By the way, I am not as comfortable working in the group policy, so I handled this by manually entering the key on my PC, then exporting it to a. COM-Add_ins2.png' alt='Uninstall Microsoft Office File Validation Add-In' title='Uninstall Microsoft Office File Validation Add-In' />I emailed that to all users there are only 3. I can ask did you run the fix I sent. Uninstall Microsoft Office File Validation Add-In' title='Uninstall Microsoft Office File Validation Add-In' />Note. World Heroes 2 Mugen. When you are developing your addin and deploying it with Microsoft Office Developer Tools for Visual Studio, the addin is directly installed on the target. PDF files that contain the Visual Studio 2005 documentation. Should I remove Microsoft Office File Validation AddIn by Microsoft Office File Validation OFV is a security feature that was introduced in Microsoft Office 2010.