To resolve this issue, install Update Rollup 3 for Exchange Server 2010 Service Pack 1 (SP1).
For more information about Update Rollup 3 for Exchange Server 2010 SP1, click the following article number to view the article in the Microsoft Knowledge Base:
2529939 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 1
After you install this update, you have to create a registry subkey to enable the UDP notifications support feature.
To have us enable the UDP notifications support feature for you, go to the "
Fix it for me" section. If you prefer to enable the UDP notifications support feature yourself, go to the "
Let me fix it myself" section.
Fix it for me
To fix this problem automatically, click the Fix this problem link. Then click Run in the File Download dialog box, and follow the steps in this wizard.
Notes- This wizard may be in English only, but the automatic fix also works for other language versions of Windows.
- If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD so that you can run it on the computer that has the problem.
Let me fix it myself
Note This section is intended for advanced computer users. For help with advanced troubleshooting, ask your system administrator or
contact Microsoft Support.
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To enable the UDP notifications support feature, create the EnablePushNotifications registry subkey. To do this, follow these steps:
- Click Start, click Run, type regedit, and then click OK.
- Locate and then select the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeRPC
- On the Edit menu, point to New, and then click Key.
- Type ParametersSystem, and then press Enter.
- Locate and then select the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeRPC\ParametersSystem
- On the Edit menu, point to New, and then click DWORD Value.
- Type EnablePushNotifications, and then press Enter.
Note The default value is 0, which disables the UDP notification support feature. - In the details pane, right-click EnablePushNotifications, and then click Modify.
- In the Value data box, type 1, and then click OK.
- On the File menu, click Exit to close Registry Editor.