Hi, CIM Schema 2.23.0 experimental contains the OSTypes enumeration, which standardizes operating system names. The list is updated by DMTF as needed, and currently looks like this: Unknown, Other, MACOS, ATTUNIX, DGUX, DECNT, Tru64 UNIX, OpenVMS, HPUX, AIX, MVS, OS400, OS/2, JavaVM, MSDOS, WIN3x, WIN95, WIN98, WINNT, WINCE, NCR3000, NetWare, OSF, DC/OS, Reliant UNIX, SCO UnixWare, SCO OpenServer, Sequent, IRIX, Solaris, SunOS, U6000, ASERIES, HP NonStop OS, HP NonStop OSS, BS2000, LINUX, Lynx, XENIX, VM, Interactive UNIX, BSDUNIX, FreeBSD, NetBSD, GNU Hurd, OS9, MACH Kernel, Inferno, QNX, EPOC, IxWorks, VxWorks, MiNT, BeOS, HP MPE, NextStep, PalmPilot, Rhapsody, Windows 2000, Dedicated, OS/390, VSE, TPF, Windows (R) Me, Caldera Open UNIX, OpenBSD, Not Applicable, Windows XP, z/OS, Microsoft Windows Server 2003, Microsoft Windows Server 2003 64-Bit, Windows XP 64-Bit, Windows XP Embedded, Windows Vista, Windows Vista 64-Bit, Windows Embedded for Point of Service, Microsoft Windows Server 2008, Microsoft Windows Server 2008 64-Bit, FreeBSD 64-Bit, RedHat Enterprise Linux, RedHat Enterprise Linux 64- Bit, Solaris 64-Bit, SUSE, SUSE 64-Bit, SLES, SLES 64-Bit, Novell OES, Novell Linux Desktop, Sun Java Desktop System, Mandriva, Mandriva 64- Bit, TurboLinux, TurboLinux 64-Bit, Ubuntu, Ubuntu 64-Bit, Debian, Debian 64-Bit, Linux 2.4.x, Linux 2.4.x 64-Bit, Linux 2.6.x, Linux 2.6.x 64-Bit, Linux 64-Bit, Other 64-Bit, Microsoft Windows Server 2008 R2, VMware ESXi, Microsoft Windows 7 Since the CIM spec is freely available, we could re-use their enumeration. Please check if you can map the OS identifiers of your DRM system to this list. Best regards, Peter.