Add the ISAPI Extension to the Exchange Web Site

The Microsoft Exchange web site on your IIS web server needs the SiteMinder ISAPI extension to operate with Microsoft Outlook Web Access.

To add the ISAPI extension to the Exchange web site

Open the Internet Information Services (IIS) Manager, and then expand the Web Sites folder.
A list of web sites appears.
Right-click the Exchange folder, and then select Properties.
The Exchange Properties dialog appears.
Click the Virtual Directory tab, and then verify the following settings:
- Local path: path_to_the exchange_folder For example, C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa
- Application Name: Exchange
- Execute Permissions: Scripts and Executables
Click Configuration.
The Application Configuration dialog appears.
Click Insert.
The Add/Edit Extension Mapping dialog appears.
Click Browse, and then navigate to the following file:
```
C:\Program Files\CA\webagent\bin\ISAPI6WebAgent.dll
```
Click Open.
The path appears in the Add/Edit Extension mapping dialog.
Clear the Verify that file exists check box.
Click OK.
The Add/Edit Extension mapping dialog closes. The DLL file appears in the Wildcard Application Maps (order of implementation) list.
Click OK.
The Application Configuration dialog closes.
Click OK.
The Exchange Properties dialog closes. The ISAPI extension is added to the Exchange web site.