ArcGIS Workflow Manager REST endpoint returning a "Bad URL" error when using .NET Server and IIS 7

Error Message

After installing ArcGIS Workflow Manager on a Windows Server 2008 and using IIS7, the REST end point (https://<Server>/wmrest/services) throws a "Bad URL" error.

Note:
This issue was resolved at Service Pack 2 of ArcGIS Workflow Manager. Please install the service pack at your earliest convenience.

Cause

The defaultAppPool setting on IIS 7 is set to integrated mode and not classic mode.

Solution or Workaround

1. Open the Internet Information Service (IIS) Manager from the Start menu.
2. Expand the connections node to connect to the current server.
3. Select Application Pools to view the different application pools configured on the server. Note the pool type that uses classic mode. Typically, there is a Classic .NET AppPool.
4. Expand the Sites > Default Web Site and right-click the WMREST site and convert to application. Click OK on the Add Application dialog box.
   
5. Click the WMREST site to view the site properties. In the Actions window, click Basic Settings to open the Edit Application dialog box.
6. Click Select... by the Application Pool, and select the Classic .NET AppPool.
7. Click OK and restart IIS.