(This blog post was first published on the original RMS team blog in July 2011.)
When using the
Active
Directory Rights Management Services Bulk Protection Tool
(http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=11122)
with Microsoft Outlook 2007 or 2010 Personal Store (.pst) files, you may
experience a file truncation problem if Microsoft Outlook is set to process files
asynchronously. To prevent this issue, you can configure Outlook to operate in
synchronous mode by editing the Windows Registry.
WARNINGS:
For more information on registry
editing, see the following resources:
For more information about personal
storage folders, see
How to
manage .pst files Outlook 2007, Outlook 2003, and in Outlook 2002
in Microsoft
Knowledge Base article 287070 (http://support.microsoft.com/kb/287070).
After backing up the registry, you must create the REG_DWORD
value SyncWMLoad and modify the entry to read 1. The following table shows the
paths and values for Outlook 2010 and 2007
Outlook version |
Registry Path under: HKEY_LOCAL_MACHINESOFTWAREMicrosoft |
Value Type |
Value |
To enable synchronous processing |
To disable synchronous processing |
2010 |
Office14.0Outlook |
REG_DWORD |
SyncWMLoad |
1 |
0 |
2007 |
Office12.0Outlook |
REG_DWORD |
SyncWMLoad |
1 |
0 |
The following figure illustrates the modification to enable
synchronous processing for an Outlook 2010 client computer:
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