Altiris 7.5 SP1 (HTTP Error 403.14 - Forbidden) on Server 2012 R2

Dear All,

NS : Server 2012 R2

Client : Windows 7

 Launch  this page "http://<server name>/altiris/ns/nscap/bin/win32/x86/inventory/agent package" show (HTTP Error 403.14 - Forbidden).

Detailed Error Information:

Module    DirectoryListingModule
Notification    ExecuteRequestHandler
Handler    StaticFile
Error Code    0x00000000
Requested URL    http://<server name>:80/altiris/ns/nscap/bin/win32/x86/inventory/agent package
Physical Path    C:\Program Files\Altiris\Notification Server\NSCap\Bin\win32\x86\inventory\agent package
Logon Method    Anonymous
Logon User    Anonymous