Try this,
->
Set dtmConvertedDate = CreateObject("WbemScripting.SWbemDateTime")
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colOperatingSystems = objWMIService.ExecQuery _
("Select * from Win32_OperatingSystem")
For Each objOperatingSystem in colOperatingSystems
ergVal = "Boot Device: " & objOperatingSystem.BootDevice & vbcrlf
ergVal = ergVal & "Build Number: " & objOperatingSystem.BuildNumber & vbcrlf
ergVal = ergVal & "Build Type: " & objOperatingSystem.BuildType & vbcrlf
ergVal = ergVal & "Caption: " & objOperatingSystem.Caption & vbcrlf
ergVal = ergVal & "Code Set: " & objOperatingSystem.CodeSet & vbcrlf
ergVal = ergVal & "Country Code: " & objOperatingSystem.CountryCode & vbcrlf
ergVal = ergVal & "Debug: " & objOperatingSystem.Debug & vbcrlf
ergVal = ergVal & "Encryption Level: " & objOperatingSystem.EncryptionLevel & vbcrlf
dtmConvertedDate.Value = objOperatingSystem.InstallDate
dtmInstallDate = dtmConvertedDate.GetVarDate
ergVal = ergVal & "Install Date: " & dtmInstallDate & vbcrlf
ergVal = ergVal & "Licensed Users: " & objOperatingSystem.NumberOfLicensedUsers & vbcrlf
ergVal = ergVal & "Organization: " & objOperatingSystem.Organization & vbcrlf
ergVal = ergVal & "OS Language: " & objOperatingSystem.OSLanguage & vbcrlf
ergVal = ergVal & "OS Product Suite: " & objOperatingSystem.OSProductSuite & vbcrlf
ergVal = ergVal & "OS Type: " & objOperatingSystem.OSType & vbcrlf
ergVal = ergVal & "Primary: " & objOperatingSystem.Primary & vbcrlf
ergVal = ergVal & "Registered User: " & objOperatingSystem.RegisteredUser & vbcrlf
ergVal = ergVal & "Serial Number: " & objOperatingSystem.SerialNumber & vbcrlf
ergVal = ergVal & "Version: " & objOperatingSystem.Version & vbcrlf
Next
msgbox ergVal
<-
lies doch mal ne doku ;)