Implementing the Change Password feature with Outlook Web App (IIS 7 & 7.5)

Exchange 2010 SP1 or Exchange Server 2007 SP3 adds a new feature to the Client Access server (CAS) role. This feature creates a new Internet Information Services (IIS) 7 module that detects expired passwords, and redirects users to a new change password page. By default, this feature is disabled. To enable the password reset feature, you must set a registry key.

1. Right-click "MSExchange OWA", select "New > DWORD (32-bit) Value".

2. Enter "ChangeExpiredPasswordEnabled".

3. Navigate to "HKLM\SYSTEM\CurrentControlSet\Services\MSExchange OWA"

Figure 1: Registry location 

4.     Right-click "MSExchange OWA", select "New > DWORD (32-bit) Value".

5.     Enter "ChangeExpiredPasswordEnabled".

Remark:            The "DWORD (32-bit) Value" is case-sensitive.

6.     Double-click "ChangeExpiredPasswordEnabled", type "1", click "OK".

Figure 2: ChangeExpiredPasswordEnabled

7.     Exit Registry Editor, restart Client Access Server.

Reference: http://blogs.technet.com/b/nawar/archive/2010/06/28/exchange-2007-sp3-password-reset-for-expired-passwords-or-change-first-log-on-scenarios.aspx

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