procedure TForm1.Button3Click(Sender: TObject);
begin
  WinExec('C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe', SW_SHOW or SW_MINIMIZE or SW_SHOWMINIMIZED);
end;

procedure TForm1.FormCreate(Sender: TObject);
var
   sqlServerName:TStrings;
   i:Integer;
begin
   sqlServerName:=TStringList.Create;
   GetSQLServerList(sqlServerName);
   for i := 0 to sqlServerName.Count-1 do
      ComboBox1.Items.Add(sqlServerName.Strings[i]);
   sqlServerName.Free;

   str_exe:=ExtractFilePath(Forms.Application.ExeName);

   ComboBox1.ItemIndex:=0;


end;

private
    { Private declarations }
  public
    { Public declarations }
    str_exe:string;
  end;

var
  Form1: TForm1;
  IsExists:Boolean = False;

const
    MSSQL_98StartCommand  =   'scm   -action   1   -pwd   "%s"';
    MSSQL_NTStartCommand  =   'net   start   mssqlserver';
    MSSQL_98StopCommand   =   'scm   -action   6';
    MSSQL_NTStopCommand   =   'net   stop   mssqlserver';

implementation

uses SQLServerLists;

{$R *.dfm}

function IsNT:Boolean;
begin
   Result:=(Win32MajorVersion >= 4) and (Win32Platform = VER_PLATFORM_WIN32_NT);
end;

function IsExistsMSSQL:Boolean;
const
   MSSQLSERVER = 'SOFTWARE\Microsoft\MSSQLServer';
var
   Reg:TRegistry;
begin
   Result:=IsExists;
   if Result then Exit;
   if not IsNT then
      Reg:=TRegistry.Create
   else
      Reg:=TRegistry.Create(KEY_READ);
   with Reg do
      try
          Reg.RootKey   :=   HKEY_LOCAL_MACHINE;
          Result   :=   KeyExists(MSSQLSERVER);
          IsExists   :=   Result;
      finally
          Free;
      end;
end;   

//sql server başlat
function StartMSSQL(Pass:string):Boolean;
var
   S:   string;
begin
   Screen.Cursor:=crHourGlass;
   try
      if not IsNT then
         S:=Format(MSSQL_98StartCommand,   [Pass])
      else
         S:=MSSQL_NTStartCommand;
      try
         WinExec(PChar(S),   SW_HIDE);
         Result:=True;
      except
         Result:=False;
      end;
   finally
      Screen.Cursor:=crDefault;
   end;
end;

//sql server durdur
function StopMSSQL:Boolean;
begin
   Screen.Cursor:=crHourGlass;
   try
      try
         if not IsNT then
            WinExec(MSSQL_98StopCommand,   SW_HIDE)
         else
            WinExec(MSSQL_NTStopCommand,   SW_HIDE);
         Result:=True;
      except
         Result:=False;
      end;
   finally
      Screen.Cursor:=crDefault;
   end;
end;

//sql server durumu
function GetSqlServerStatus(lpszComputerName: LPCTSTR): Integer;
var
  ssStatus: SERVICE_STATUS;
  dwOldCheckPoint: DWORD;
  dwStartTickCount: DWORD;
  dwWaitTime: DWORD;
  dwStatus: DWORD;
  lpszServiceName: LPCTSTR;
  schSCManager: SC_HANDLE;
  schService: SC_HANDLE;
begin
  if (lpszComputerName <> nil) and
      ((StrComp(lpszComputerName, '127.0.0.1') = 0) or (StrComp(lpszComputerName, '.') = 0)) then
    lpszComputerName := nil;
  lpszServiceName := 'MSSQLServer';
  schSCManager := OpenSCManager(
    lpszComputerName,         //Computer name
    nil,          // ServicesActive database
    SC_MANAGER_ALL_ACCESS);  // full access rights

  if schSCManager = 0 then
    GetSqlServerStatus := -1;        //Machine not exists

  schService := OpenService(
    schSCManager,          // SCM database
    lpszServiceName,          // service name
    SERVICE_ALL_ACCESS);

  if schService = 0 then  begin
    CloseServiceHandle(schService);
    GetSqlServerStatus := -2;  //SqlServer Service not Exists
  end;

  if not QueryServiceStatus(
    schService,   // handle to service
    ssStatus) then begin  // address of status information structure
    CloseServiceHandle(schService);
    GetSqlServerStatus := -3;   //MyErrorExit('QueryServiceStatus');
  end;
  Result := ssStatus.dwCurrentState;

end;

function SqlServerStatus(MachineName:string):string;
var
  SrvStatus:integer;
  str:string;
begin
   SrvStatus:=GetSqlServerStatus(pChar(MachineName));
   case SrvStatus of
     1:str:='Stopped ';
     2:str:='Starting ';
     3:str:='Stopping ';
     4:str:='Running ';
     5:str:='Restarting after being paused ';
     6:str:='Pausing ';
     7:str:='Paused ';
   end;
   Result := str;
end;

procedure TForm1.SpeedButton1Click(Sender: TObject);
begin
   if StartMSSQL('.') then
   begin
      sleep(3000);
      StatusBar1.Panels[0].Text:=SQLServerStatus(ComboBox1.Text)+'-'+'\\'+ComboBox1.Text+'-'+'MSSQLServer';
      Image1.Picture.LoadFromFile(str_exe+'runningserver.bmp');

      SpeedButton1.Enabled:=false;
      SpeedButton2.Enabled:=true;
   end
   else
   begin

   end;

end;

procedure TForm1.SpeedButton2Click(Sender: TObject);
begin
   if Forms.Application.MessageBox(Pchar('\\'+ComboBox1.Text+ ' üzerinde MSSQLSERVER servisini DURDURMAK istiyor musunuz?'),'SQL Server Service Manager',MB_YESNO+MB_ICONINFORMATION)=ID_YES then
   begin
      StopMSSQL;
      sleep(3000);
      StatusBar1.Panels[0].Text:=SQLServerStatus(ComboBox1.Text)+'-'+'\\'+ComboBox1.Text+'-'+'MSSQLServer';
      Image1.Picture.LoadFromFile(str_exe+'stopserver.bmp');
      SpeedButton1.Enabled:=true;
      SpeedButton2.Enabled:=true;
   end;
end;