In most Inno Setup sections (like [Files]
, [Tasks]
, [Run]
, etc.) you can use the MinVersion
and OnlyBelowVersion
common parameters.
[Files]
Source: MyDllForVistaAndNewer.dll; Dest: {app}\MyDll.dll; MinVersion: 6.0
Source: MyDllForOldWindows.dll; Dest: {app}\MyDll.dll; OnlyBelowVersion: 6.0
In Pascal Script, use the GetWindowsVersionEx
function to find the Windows version number. Then compare the number against a specific Windows version number.
Here are few handy functions to check specific Windows versions:
function IsWindowsVersionOrNewer(Major, Minor: Integer): Boolean;
var
Version: TWindowsVersion;
begin
GetWindowsVersionEx(Version);
Result :=
(Version.Major > Major) or
((Version.Major = Major) and (Version.Minor >= Minor));
end;
function IsWindowsXPOrNewer: Boolean;
begin
Result := IsWindowsVersionOrNewer(5, 1);
end;
function IsWindowsVistaOrNewer: Boolean;
begin
Result := IsWindowsVersionOrNewer(6, 0);
end;
function IsWindows7OrNewer: Boolean;
begin
Result := IsWindowsVersionOrNewer(6, 1);
end;
function IsWindows8OrNewer: Boolean;
begin
Result := IsWindowsVersionOrNewer(6, 2);
end;
function IsWindows10OrNewer: Boolean;
begin
Result := IsWindowsVersionOrNewer(10, 0);
end;
// Windows 11 has the same major.minor as Windows 10.
// So it has to be distinguished by the Build.
// The IsWindows10OrNewer condition is actually redundant.
// Once we have to test for Windows 11 using the build number, we could actually
// unify and simplify all the tests above to use the build numbers only too.
function IsWindows11OrNewer: Boolean;
var
Version: TWindowsVersion;
begin
GetWindowsVersionEx(Version);
Result := IsWindows10OrNewer and (Version.Build >= 22000);
end;
Example of use:
function InitializeSetup: Boolean;
begin
if not IsWindowsVistaOrNewer then
begin
MsgBox(
'This program was not tested on Windows XP and older, proceed with caution.',
mbCriticalError, MB_OK);
end;
Result := True;
end;
To test for server-editions of Windows, see:
Checking for Windows Server 2003
For version checking to work correctly on modern versions of Windows, make sure you always use the latest version of Inno Setup.