Our environment used to have an old Windows Server 2003 print server with Windows 7 Clients. To workaround various issues with asynchronous RPC communication, we set the following registry setting via Group Policy - it disables asynchronous communication on the Windows 7 Clients:
| Action | Update |
| Hive | HKEY_LOCAL_MACHINE |
| Key path | SOFTWARE\Policies\Microsoft\Windows NT\Printers |
| Value name | EnabledProtocols |
| Value type | REG_DWORD |
| Value data | 0x6 (6) |
We now have a Windows Server 2008 R2 print server and are looking to remove this workaround so that our clients use asynchronous communication with the new print server, but I do not know what the default setting of this registry value is. My gut is telling me to delete the key entirely, but that's just a guess.
Finding documentation about this key has proven to be difficult.