SMB commands run serially when the SMB packet-signing feature is enabled in Windows 7 SP1 or in Windows Server 2008 R2 SP1 - Microsoft SupportWindows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition Windows 7 Service Pack 1 Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Starter Windows 7 Ult
