Outlook Web Access stops responding when you try to connect to a front-end server that is running Exchange 2000 Server

You use Microsoft Office Outlook Web Access to connect to a front-end server that is running Microsoft Exchange 2000 Server to access your mailbox. When you do this, you may experience the following issues:

• The Outlook Web Access client may become unresponsive.
• Microsoft Internet Information Services (IIS) may stop responding.
• The DrWatson log file may contain an error message that resembles the following error message:
  0:086> !error c0000017 Error code: (NTSTATUS) 0xc0000017 (3221225495) - {Not Enough Quota} Not enough virtual memory or paging file quota is available to complete the specified operation.
• The Inetinfo.exe process may generate a stack dump file that resembles the following stack dump file:
  CritSec at 1655bd4.
  Owned by thread 86.
  Waiting Threads: 20 22 78 83 87 88 89 90 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141

This issue occurs when an instance of the public store is running on the Exchange 2000 Server front-end server. In this case, the Outlook Web Access client tries to access the public folder on the Exchange 2000 Server front-end server. This process may generate a memory leak in IIS.

To resolve this issue, you must delete the public folder store before you can successfully delete a public folder tree in Exchange 2000 Server. To do this, follow these steps.

Important Before you delete the public folder store, you must remove or replicate any existing public folders that exist in the public folder store. The contents of any public folders that are replicated to the public store that you want to delete are permanently lost after the public folder is deleted.

1. Log on to the computer on which Exchange System Manager is installed by using an account that has administrative permissions.
2. Click Start, point to All Programs, click Microsoft Exchange, and then click System Manager.
3. In Exchange System Manager, expand Administrative Groups, and then expand the administrative group that you want.
4. Expand Servers, and then expand the name of the server that you want.
5. Expand the storage group that you want.
6. Right-click Public Folder Store, and then click Delete.
7. Restart the Exchange 2000 Server front-end server.

Note Exchange System Manager updates the Active Directory directory service when you delete a public folder store or public folders.