1.

Start Internet Information Services (IIS) Manager from Administrative Tools.

2.

Locate the Exchange virtual directory, for example, Web Sites\Default Web Site\Exchange

3.

Right-click the Exchange folder click All Tasks, and then click Save Configuration to a File.

4.

In the File name box, type a name. For example, type ExchangeVDir. Click OK.

5.

Right-click the root of this Web site. Typically, this is Default Web Site. Click New, and then click Virtual Directory (from file).

6.

In the Import Configuration dialog box, click Browse, locate the file that you created in step 4, click Open, and then click Read File.

7.

Under Select a configuration to import , click Exchange, and then click OK.

A dialog box will appear that states that the "virtual directory already exists."

8.

In the Alias box, type a name for the new virtual directory that you want Exchange ActiveSync and Outlook Mobile Access to use. In our case, it is exchange-oma. Click OK.

9.

Right-click the new virtual directory. In this example, click exchange-oma. Click Properties.

10.

Click the Directory Security tab.

11.

Under Authentication and access control, click Edit.

12.

Make sure that only the following authentication methods are enabled, and then click OK:

13.

Under Secure communications, click Edit. Make sure that Require secure channel (SSL) is not enabled, and then click OK.

14.

Click OK, and then close the IIS Manager.