[Setup]
AppName=My Application
AppVersion=1.5
DefaultDirName={pf}\My Application
[Code]
function IsAppRunning(const FileName : string): Boolean;
var
FSWbemLocator: Variant;
FWMIService : Variant;
FWbemObjectSet: Variant;
begin
Result := false;
FSWbemLocator := CreateOleObject('WBEMScripting.SWBEMLocator');
FWMIService := FSWbemLocator.ConnectServer('', 'root\CIMV2', '', '');
FWbemObjectSet := FWMIService.ExecQuery(Format('SELECT Name FROM Win32_Process Where Name="%s"',[FileName]));
Result := (FWbemObjectSet.Count > 0);
FWbemObjectSet := Unassigned;
FWMIService := Unassigned;
FSWbemLocator := Unassigned;
end;
function InitializeSetup: boolean;
begin
result := not IsAppRunning('winamp.exe');
if not result then
MsgBox('Процесс Winamp.exe запущен установка невозможна', mbError, MB_OK);
end;