This happened to me migrating my email files from my old XP machine to my new
Vista machine. The old machine had McAfee SonicWALL installed. There is a
file called extend.dat that resided in the Local Settings\Applications
Data\Microsoft\Outlook directory with my outlook and archive files. When I
copied the old outlook files to my new machine, I guess I also coppied the
extend.dat file as well. To fix this, I used Notepad to open the extend.dat
file that I moved to the new machine - there is a line C:\Program
Files\McAfee\Managed VirusScan\VScan\OtlkUI.20080514211134.dll that I
highlighted, removed, and saved. You have to do this while Outlook is not
running, otherwise you can't edit the file. After nremoving this line, the
silly message went away. I hope this helps you....
"rbeckert" wrote:
> Reset extend.dat and outcmd.dat again while Outlook was closed.
> Checked Task Manager to verify that the process outlook.exe actually quit.
> Started Outlook and got the "The add-in "C:\Program Files\McAfee\Managed..."
> message again and checked the folders for extend.dat and outcmd.dat and they
> were rewritten again.
>
> What program do I check Help-> About-> Disabled Items for. It doesn't show
> up as a menu item under Help in either Outlook or Task Manager.
>
>
> "Roady [MVP]" wrote:
>
> > > I wonder what would happen if I took extend.dat from another machine...
> > You would corrupt Outlook and probably crash it at startup.
> >
> > Reset both extend.dat and outcmd.dat again while Outlook is closed. Use Task
> > Manager to verify that the process outlook.exe actually quits before doing
> > anything.
> > Also check Help-> About-> Disabled Items to see if it shows up there
> >
> > --
> > Robert Sparnaaij [MVP-Outlook]
> > Coauthor, Configuring Microsoft Outlook 2003
> > http://www.howto-outlook.com/
> > Outlook FAQ, HowTo, Downloads, Add-Ins and more
> >
> > http://www.msoutlook.info/
> > Real World Questions, Real World Answers
> >
> > -----
> >
> > "rbeckert" <(E-Mail Removed)> wrote in message
> > news:677D135D-7DD5-4151-B3CF-(E-Mail Removed)...
> > > No toolbar of the addin and I looked in those registry settings and
> > > nothing
> > > there referencing a McAfee addin.
> > >
> > > I wonder what would happen if I took extend.dat from another machine
> > > running
> > > 2003 that had the same addins listed in Addin Manager (Google Desktop
> > > Search
> > > Outlook Addin and Exchange Extensions property pages)?
> > >
> > > "Roady [MVP]" wrote:
> > >
> > >> Correct, extend.dat is recreated from the registry information. If you
> > >> also
> > >> had a toolbar with the buttons of the addin then you might also need to
> > >> reset outcmd.dat
> > >>
> > >> You might also find references to the addin in either
> > >> HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\AddIns
> > >> or
> > >> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins
> > >>
> > >> --
> > >> Robert Sparnaaij [MVP-Outlook]
> > >> Coauthor, Configuring Microsoft Outlook 2003
> > >> http://www.howto-outlook.com/
> > >> Outlook FAQ, HowTo, Downloads, Add-Ins and more
> > >>
> > >> http://www.msoutlook.info/
> > >> Real World Questions, Real World Answers
> > >>
> > >> -----
> > >>
> > >> "rbeckert" <(E-Mail Removed)> wrote in message
> > >> news:400FDABF-466B-45A0-AD63-(E-Mail Removed)...
> > >> > OK, tried that and still getting the message. Outlook rewrites the
> > >> > extend.dat
> > >> > file. From reading http://www.msoutlook.info/question/19, it looks like
> > >> > the
> > >> > entry may still be in the registry. Correct?
> > >> >
> > >> > "Roady [MVP]" wrote:
> > >> >
> > >> >> Locate extend.dat and rename it to .old
> > >> >> See http://www.msoutlook.info/question/19
> > >> >>
> > >> >> --
> > >> >> Robert Sparnaaij [MVP-Outlook]
> > >> >> Coauthor, Configuring Microsoft Outlook 2003
> > >> >> http://www.howto-outlook.com/
> > >> >> Outlook FAQ, HowTo, Downloads, Add-Ins and more
> > >> >>
> > >> >> http://www.msoutlook.info/
> > >> >> Real World Questions, Real World Answers
> > >> >>
> > >> >> -----
> > >> >>
> > >> >> "rbeckert" <(E-Mail Removed)> wrote in message
> > >> >> news:B57ACF3B-48E1-45D0-B7B7-(E-Mail Removed)...
> > >> >> > When opening 2003 I receive the following message:
> > >> >> >
> > >> >> > "The add-in "C:\Program Files\McAfee\Managed
> > >> >> > VirusScan\VScan\OtlkUI.20080..." could not be installed or loaded.
> > >> >> > This
> > >> >> > problem may be resolved by using Detect and Repair on the Help
> > >> >> > menu."
> > >> >> >
> > >> >> > The file has been uninstalled but Outlook still tries to load it. I
> > >> >> > have
> > >> >> > looked in "Add-In Manager" and it is not there. I have used "Detect
> > >> >> > and
> > >> >> > repair" and that didn't help.
> > >> >> >
> > >> >> > Any suggestions on how to have Outlook stop trying to load the file?
> > >> >
> > >>
> >
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