The latest version of Microsoft Windows Mobile is 6.1 announced April 1, 2008. Hope this helps.
The latest version of Windows Movie Maker is v2.6 (for Vista).
My Windows 7 laptop has Version 5.5.0.124 - if that's any use !
The last version of Windows under the "NT" brand was Windows NT 4. The latest version to be built upon Windows NT is Windows Vista (Windows 7 has not yet been releasedofficially).
The latest version of Windows XP is Service Pack 4.
Windows 7 is the latest Windows Operating System
The standard OS for a PC is Windows, and the latest version is Windows 7.
Windows 7 is the second-to-latest version of Microsoft Windows.
Microsoft Windows 7
Usually referring to the latest version of Microsoft Windows, sometimes to the latest version of OS X.
The latest version of Windows XP is Service Pack 3, version 1. Windows XP is no longer being supported by Microsoft, however, and they are officially urging all XP users to switch to Windows 7 or 8.
If by Microsoft you mean the Windows operating system: The latest general OS is Vista (6.0.6002) The latest server OS is Windows Server 2008 (6.0.6002) The latest (release candidate) for Vista's successor is Windows 7 (6.1.7100)
I guess windows 7 is the latest version of operating system in MICROSOFT.