Microsoft Hotfix changes the HostId on I/A Series (Niagara) R2 and G3 Enterprise Server or Engineering workstations.
See TPA-IA-11-0007.00 for details.
TAC I/A Series
I/A Series R2 and G3: All 32-bit versions of software installed on 64-bit versions of Windows 7, or Windows Server 2008 R2.
Microsoft recently released a hotfix for an issue that affects machines running x64 versions of Windows 7 and Windows Server 2008 R2, described in knowledge base article 2603229.
The Windows registry contains entries to designate the organization and owner name that correspond to the computer. Each of these registry entries has a 32-bit and 64-bit version. Prior to applying the hotfix, when the OS was installed and setup for the first time, only the 64-bit version of the registry entries were written, leaving the 32-bit registry entries at the factory default value.
I/A Series software HostIds are generated from multiple pieces of information gathered from the registry and hardware components of the host platform. The changes made by this Microsoft hotfix will cause the HostId to change on Windows 7 x64 or Windows Server 2008 R2 x64 machines running 32-bit I/A Series G3 or R2 software.
See TPA-IA-11-0007.00 for recommended solution.
NOTE: The TPA indicates that the patch is in the I/A Series G3 "Recovery Files" folder. The files are version dependent and are located in the Release 3.4.64, Release 3.4.67, Release 3.5.34, Release 3.5.39 or Release 3.6.31 folder, as appropriate for the specified version. For other versions, option #1 must be used.