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Exchange Server Cookbook
book

Exchange Server Cookbook

by Paul Robichaux, Missy Koslosky, Devin L. Ganger
June 2005
Intermediate to advanced content levelIntermediate to advanced
464 pages
13h 2m
English
O'Reilly Media, Inc.
Content preview from Exchange Server Cookbook

8.1. Blocking Specific Versions of Outlook from Connecting

Problem

You want to be able to control which versions of Outlook connect to your Exchange servers using MAPI, to prevent users from running older, unpatched versions or from running beta versions. Or you may want to completely disable the use of MAPI.

Solution

Using a graphical user interface

  1. Log on to the server where you want to block certain versions of Outlook from connecting. You must perform the following steps individually on each server.

  2. Using Registry Editor (regedit.exe), locate the following registry key:

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
  3. Add a REG_SZ value named Disable MAPI Clients. For the value data, enter a string containing a list of the MAPI client versions you wish to prevent connecting in one of the formats listed in Table 8-1. (You can get version data in ESM by checking the Logons node under each mailbox database; the Client Version column will tell you what clients and versions are currently in use.) You can specify multiple versions and ranges by separating them with commas.

Table 8-1. Registry formats for blocking Outlook connections

Format

Effect

Example

Maj.min.rev

Blocks the specified version only

9.0.0 blocks all versions of Outlook 2000

maj.min.rev.build

Blocks everything except the specified one

11.6359.6360 allows Outlook 2003 SP1, but nothing else

oldversion-newversion

Blocks all version in the specified range

8.00.3511-8.5.7806 blocks all Outlook ...

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Publisher Resources

ISBN: 0596007175Errata Page