WinForm窗体调用WCF服务窗体卡死问题

Thread ServiceThread=null;
public void TestForm_Load(object sender, EventArgs e)
{
CheckForIllegalCrossThreadCalls = false;
ServiceThread = new Thread(new ThreadStart(RegService));
ServiceThread.Start();
}
private void RegService()
{
//这里实现注册服务调用服务操作
}

private void TestForm_FormClosed(object sender, FormClosedEventArgs e)
{
ServiceThread.Abort();
Application.Exit();
}