High CPU Utilization in Store.exe (243950)

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SYMPTOMS

You may see a spike in Store.exe in Performance Monitor under the Page File Bytes counter. Store.exe continues to rise until resources are exhausted. CPU utilization is extemely high, as seen in the DPC Queued/sec counter, and you may be unable to log on to the console. All appearances point to a memory leak in Exchange Server Store.exe as Pool Nonpaged Bytes mirror the trend seen in the above counters.

CAUSE

This behavior can occur if you are using ArcServe Agent for Exchange Server Backup. ArcServe may be referencing the wrong memory allocation.

RESOLUTION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this issue, use the following steps:

Start Registry Editor (Regedt32.exe).
Locate the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DBAGENT\Type
On the Edit menu, click DWORD, type 10 (hexadecimal value), and then click OK.
Quit Registry Editor.