Enable OWA Based Password Change on Exchange 2003

First configure your server to use SSL.

Create a new Virtual Directory called Iisadmpwd under the Default Web Site.
	o Open Internet Information Services Manager from the Administrative Tools.
	o In IIS Manager expand SERVERNAME (Where SERVERNAME is your server name object),
	  expand Web Sites, and then expand Default Web Site.
	o Right-click Default Web site and choose New, then select Virtual Directory.
	o In the Welcome screen click Next.
	o In the Virtual Directory Alias window type Iisadmpwd. Click Next.
	o In the Website Content Directory screen navigate to %Systemroot%\System32\Inetsrv\Iisadmpwd. Click Next.
	o In the Virtual Directory Access Permissions grant Read, Run Scripts and Execute permissions. Click Next.
	o See that the new Virtual Directory is listed in the folder list on the right-pane of the IIS Admin console.

Next, you need to enable the Change Password button in the Registry of the server.
	[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeWEB\OWA]
	"DisablePassword"=dword:00000000

Restart the IIS Services (you can do it from the IIS Admin tool).

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You also have to go into the iisadmpwd virtual folder properties, select configure
in the application settings area of the virtual directory tab, and remove the davex.dll.
You may get a 501 error if you don't do this.

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Front-End and Back-End Configuration:

For this to work correctly in this configuration, your procedure should be followed on the
front end server only. Then, the backend servers only require the DisablePassword registry
change to be done.