"The Application Integration Framework doesn't work" in Dynamic AX 2012 for EP

Hi,
 EP will be sucessfully installed but it throw the error.

 "the Application Integration Framework doesn't work"

 Application Integration Framework (AIF) to run on the same computer as Windows SharePoint Services (WSS) and Enterprise Portal, the virtual directory that AIF is using must be excluded from the SharePoint managed path.

1. Open the SharePoint Central Administration page or, from the browser on a remote computer, type the URL (for example, http://servername:port) for the pages on the administration port.

To open the SharePoint Central Administration page, click Start, point to All Programs, point to Administrative Tools, and then click SharePoint Central Administration.

2. Click Configure virtual server settings, and then click the name of the site that you are managing.
3. Under Virtual Server Management, click Define managed paths.
4. Under Add a New Path, enter the AIF virtual directory path, select Excluded path, and then click OK.

Regards