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    <p>WMI QUery:</p> <pre><code>"Select * from Win32_OperatingSystem" </code></pre> <p>EDIT: Actually better would be:</p> <pre><code>"Select Version from Win32_OperatingSystem" </code></pre> <p>You could implement this in Delphi like so:</p> <pre><code>function OperatingSystemDisplayName: string; function GetWMIObject(const objectName: string): IDispatch; var chEaten: Integer; BindCtx: IBindCtx; Moniker: IMoniker; begin OleCheck(CreateBindCtx(0, bindCtx)); OleCheck(MkParseDisplayName(BindCtx, PChar(objectName), chEaten, Moniker)); OleCheck(Moniker.BindToObject(BindCtx, nil, IDispatch, Result)); end; function VarToString(const Value: OleVariant): string; begin if VarIsStr(Value) then begin Result := Trim(Value); end else begin Result := ''; end; end; function FullVersionString(const Item: OleVariant): string; var Caption, ServicePack, Version, Architecture: string; begin Caption := VarToString(Item.Caption); ServicePack := VarToString(Item.CSDVersion); Version := VarToString(Item.Version); Architecture := ArchitectureDisplayName(SystemArchitecture); Result := Caption; if ServicePack &lt;&gt; '' then begin Result := Result + ' ' + ServicePack; end; Result := Result + ', version ' + Version + ', ' + Architecture; end; var objWMIService: OleVariant; colItems: OleVariant; Item: OleVariant; oEnum: IEnumvariant; iValue: LongWord; begin Try objWMIService := GetWMIObject('winmgmts:\\localhost\root\cimv2'); colItems := objWMIService.ExecQuery('SELECT Caption, CSDVersion, Version FROM Win32_OperatingSystem', 'WQL', 0); oEnum := IUnknown(colItems._NewEnum) as IEnumVariant; if oEnum.Next(1, Item, iValue)=0 then begin Result := FullVersionString(Item); exit; end; Except // yes, I know this is nasty, but come what may I want to use the fallback code below should the WMI code fail End; (* Fallback, relies on the deprecated function GetVersionEx, reports erroneous values when manifest does not contain supportedOS matching the executing system *) Result := TOSVersion.ToString; end; </code></pre>
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    1. POHow to detect true Windows version?
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    1. USDavid Heffernan
    1. USEBGreen
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      1. VTUpMod
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    3. VO
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    1. COElegant! I like it - and it never crossed my mind.
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      1. USgabr
    2. COOne problem with WMI - it was only introduced in Windows 2000. If you know your code won't be running on 9x or NT 3/4 then the WMI approach is fine.
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      1. USgabr
    3. CODoes anyone still run 9x or NT?
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      1. USCamilo Martin
 

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