PSTDisableGrow and the Enterprise Vault Outlook Addin 9.0.1

[Rob_Wilcox1]

I’ve just finished working on an issue with the folks in Support, relating to PSTDisableGrow.  A customer had the key set per :

http://support.microsoft.com/kb/954268

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:

   HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\PST

3. On the Edit menu, point to New, and then click DWORD Value.
4. Type PstDisableGrow, and then press ENTER.
5. Right-click PstDisableGrow, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Exit Registry Editor.

When they upgraded the Enterprise Vault Outlook Add-in to 9.0.1, they had a problem whereby opening an archived item gave them just the shortcut.  The banner across which when click showed :

The item could not be downloaded. [OIOM] 80070005

There was a change made to the 9.0.1 client to fully utilise the Outlook Object Model.  We use that to display items.  In order to display an item using the Outlook Object Model you have to have the item in a message store – previously we used an in-memory object.  So, we download the item you double click on, and add it to a temporary PST file, and then use the Outlook Object Model to display the item.  You can see the problem, I hope!  We can create a PST file…. but we can’t “grow” it to put the retrieved message in it.. so errors are thrown in to the client log, and the net result is the item fails to display, giving the end user just the shortcut.

The fix is two fold.

First of all the PSTDisableGrow must be in :

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\<version>\Outlook\PST

Secondly you have to add the key, PSTDisableGrowAllowAuthenticodeOverrides :

1. Click Start, click Run, type regedit, and then click OK.
2. Locate the following registry subkey:

   HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\<version>\Outlook\PST

3. Click the Edit menu, point to New, and then click DWORD Value.
4. Type PSTDisableGrowAllowAuthenticodeOverrides, and then press ENTER.
5. Right-click PSTDisableGrowAllowAuthenticodeOverrides, and then click Modify.
6. In the Value data box, type 1, and then click OK.

After that, restart Outlook, everything will work.

Version is 12.0 for Outlook 2007, and 14.0 for Outlook 2010.  You can find out the other versions easily enough, and it’s shown in the EV Outlook Add-in client log, if needed.

This information will land in a technote near you, very soon !

References:

http://support.microsoft.com/kb/954268

http://support.microsoft.com/kb/956070