C#

public MyClass
{
    private AutoResetEvent _specialEvent = new AutoResetEvent();
    private AutoResetEvent _normalEvent = new AutoResetEvent();
    private AutoResetEvent _bulkEvent = new AutoResetEvent();

    public threadtest()
    {
        Thread SpecialThread = new Thread(new ThreadStart(this.GetSpecial));
        Thread BulkThread = new Thread(new ThreadStart(this.GetBulk));
        Thread NormalThread = new Thread(new ThreadStart(this.GetNormal));

        SpecialThread.Start();
        BulkThread.Start();
        NormalThread.Start();

        WaitHandle.WaitAll(new WaitHandle[] { this._specialEvent, this._normalEvent, this._bulkEvent } );

        // Do stuff with the result.
    }

    public GetNormal()
    {
        // Do normal stuff.
        this._normalEvent.Set();
    }

    public GetSpecial()
    {
        // Do special stuff.
        this._specialEvent.Set();
    }

    public GetBulk()
    {
        // Do bulkstuff.
        this._bulkEvent.Set();
    }
}

shah_tech wrote:

My intention is not to force the user to use my application, but to give the access for only one application. Except that, the user could not open other applications on the system.

//in VS Initialize() method, before this.SuspendLayout(); 
((System.ComponentMode1.IsupportIntialize)(this.dsComp)).BeginInit();

//before this.ResumeLayout();
((System.ComponentMode1.IsupportIntialize)(this.dsComp)).EndInit();