/// <summary>
        /// Unregister or Register the Groove Service, to hide or enable the context menu entry
        /// </summary>
        /// <param name="groove">RegsvGroove.Disable or RegsvGroove.Enable to determinate unregister or register job</param>
        private void ContextChange(RegsvGroove groove)
        {
            string grooveexPath = textBoxInstallationPath.Text + "GROOVEEX.DLL";

            //if 'GROOVEEX.DLL' not exist inform user and exit
            if (!File.Exists(grooveexPath))
            {
                MessageBox.Show("GROOVEEX.DLL not found in " + textBoxInstallationPath.Text, "File not found!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            //run 'regsvr32' to register/unregister the groove service
            Process regsvProc = new Process();

            regsvProc.StartInfo.FileName = "regsvr32.exe";
            if (groove == RegsvGroove.Disable)
            {
                regsvProc.StartInfo.Arguments = "/u \"" + grooveexPath + "\"";
            }
            else
            {
                regsvProc.StartInfo.Arguments = "\"" + grooveexPath + "\"";
            }
            regsvProc.Start();
            regsvProc.WaitForExit();
        }
        /// <summary>
        /// Unregister or Register the Groove Service, to hide or enable the context menu entry
        /// </summary>
        /// <param name="groove">RegsvGroove.Disable or RegsvGroove.Enable to determinate unregister or register job</param>
        private void ContextChange(RegsvGroove groove)
        {
            string grooveexPath = textBoxInstallationPath.Text + "GROOVEEX.DLL" ;

            //if 'GROOVEEX.DLL' not exist inform user and exit
            if(!File.Exists(grooveexPath)){
                MessageBox.Show("GROOVEEX.DLL not found in " + textBoxInstallationPath.Text, "File not found!", MessageBoxButtons.OK, MessageBoxIcon.Error) ;
                return ;
            }

            //run 'regsvr32' to register/unregister the groove service
            Process regsvProc = new Process() ;
            regsvProc.StartInfo.FileName = "regsvr32.exe" ;
            if(groove == RegsvGroove.Disable){
                regsvProc.StartInfo.Arguments = "/u \"" + grooveexPath + "\"" ;
            }else{
                regsvProc.StartInfo.Arguments = "\"" + grooveexPath + "\"" ;
            }
            regsvProc.Start() ;
            regsvProc.WaitForExit() ;
        }