diff --git a/pttyhandler.cpp b/pttyhandler.cpp
index 28115f9..a14420e 100644
--- a/pttyhandler.cpp
+++ b/pttyhandler.cpp
@@ -5,7 +5,7 @@
 
 // Copyright 2017-2021 Elliott H. Liggett & Phil Taylor 
 
-pttyHandler::pttyHandler()
+pttyHandler::pttyHandler(QString pty)
 {
     //constructor
     // grab baud rate and other comm port details
@@ -20,17 +20,19 @@ pttyHandler::pttyHandler()
     stopBits = 1;
 
 #ifdef Q_OS_WIN
-    portName = "COM20";
+    portName = pty;
 #else
     portName = "/dev/ptmx";
 #endif
-    setupPtty(); // basic parameters
-    openPort();
-    //qDebug(logSerial()) << "Serial buffer size: " << port->readBufferSize();
-    //port->setReadBufferSize(1024); // manually. 256 never saw any return from the radio. why...
-    //qDebug(logSerial()) << "Serial buffer size: " << port->readBufferSize();
+    if (portName != "" && portName != "None") {
+        setupPtty(); // basic parameters
+        openPort();
+        //qDebug(logSerial()) << "Serial buffer size: " << port->readBufferSize();
+        //port->setReadBufferSize(1024); // manually. 256 never saw any return from the radio. why...
+        //qDebug(logSerial()) << "Serial buffer size: " << port->readBufferSize();
 
-    connect(port, SIGNAL(readyRead()), this, SLOT(receiveDataIn()));
+        connect(port, SIGNAL(readyRead()), this, SLOT(receiveDataIn()));
+    }
 }
 
 pttyHandler::pttyHandler(QString portName, quint32 baudRate)
@@ -60,7 +62,7 @@ pttyHandler::pttyHandler(QString portName, quint32 baudRate)
 
 void pttyHandler::setupPtty()
 {
-    qDebug(logSerial()) << "Setting up Pseudo Term";
+    qDebug(logSerial()) << "Setting up Pseudo Term: " << portName;
     serialError = false;
     port->setPortName(portName);
 #ifdef Q_OS_WIN
diff --git a/pttyhandler.h b/pttyhandler.h
index 417f34b..d8661c3 100644
--- a/pttyhandler.h
+++ b/pttyhandler.h
@@ -15,7 +15,7 @@ class pttyHandler : public QObject
     Q_OBJECT
 
 public:
-    pttyHandler();
+    pttyHandler(QString portName);
     pttyHandler(QString portName, quint32 baudRate);
     bool serialError;
 
diff --git a/rigcommander.cpp b/rigcommander.cpp
index b0aa6b6..8cc731a 100644
--- a/rigcommander.cpp
+++ b/rigcommander.cpp
@@ -33,7 +33,7 @@ rigCommander::~rigCommander()
 }
 
 
-void rigCommander::commSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate)
+void rigCommander::commSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate, QString vsp)
 {
     // construct
     // TODO: Bring this parameter and the comm port from the UI.
@@ -51,7 +51,7 @@ void rigCommander::commSetup(unsigned char rigCivAddr, QString rigSerialPort, qu
     this->rigBaudRate = rigBaudRate;
 
     comm = new commHandler(rigSerialPort, rigBaudRate);
-    ptty = new pttyHandler();
+    ptty = new pttyHandler(vsp);
 
     // data from the comm port to the program:
     connect(comm, SIGNAL(haveDataFromPort(QByteArray)), this, SLOT(handleNewData(QByteArray)));
@@ -74,7 +74,7 @@ void rigCommander::commSetup(unsigned char rigCivAddr, QString rigSerialPort, qu
 
 }
 
-void rigCommander::commSetup(unsigned char rigCivAddr, udpPreferences prefs)
+void rigCommander::commSetup(unsigned char rigCivAddr, udpPreferences prefs, QString vsp)
 {
     // construct
     // TODO: Bring this parameter and the comm port from the UI.
@@ -106,7 +106,7 @@ void rigCommander::commSetup(unsigned char rigCivAddr, udpPreferences prefs)
         //this->rigSerialPort = rigSerialPort;
         //this->rigBaudRate = rigBaudRate;
 
-        ptty = new pttyHandler();
+        ptty = new pttyHandler(vsp);
 
         // Data from UDP to the program
         connect(udp, SIGNAL(haveDataFromPort(QByteArray)), this, SLOT(handleNewData(QByteArray)));
diff --git a/rigcommander.h b/rigcommander.h
index cd96694..277e7f8 100644
--- a/rigcommander.h
+++ b/rigcommander.h
@@ -61,8 +61,8 @@ public:
 
 public slots:
     void process();
-    void commSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate);
-    void commSetup(unsigned char rigCivAddr, udpPreferences prefs);
+    void commSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate,QString vsp);
+    void commSetup(unsigned char rigCivAddr, udpPreferences prefs, QString vsp);
     void closeComm();
 
     // Power:
diff --git a/wfmain.cpp b/wfmain.cpp
index 26f9654..b8cc330 100644
--- a/wfmain.cpp
+++ b/wfmain.cpp
@@ -167,6 +167,46 @@ wfmain::wfmain(const QString serialPortCL, const QString hostCL, QWidget *parent
         ui->audioInputCombo->addItem(deviceInfo.deviceName());
     }
 
+    ui->serialDeviceListCombo->blockSignals(true);
+    ui->serialDeviceListCombo->addItem("Auto", 0);
+    int i = 0;
+    foreach(const QSerialPortInfo & serialPortInfo, QSerialPortInfo::availablePorts())
+    {
+        portList.append(serialPortInfo.portName());
+        ui->serialDeviceListCombo->addItem(serialPortInfo.portName(), i++);
+    }
+    ui->serialDeviceListCombo->addItem("Manual...", 256);
+    ui->serialDeviceListCombo->blockSignals(false);
+
+    // vspe checkbox is Currently disabled as not implemented!
+    ui->vspeCheck->setVisible(false);
+#ifndef Q_OS_WIN
+    ui->vspCombo->setVisible(false);
+    ui->vspLabel->setVisible(false);
+    ui->vspeCheck->setVisible(false);
+#else
+    i = 0;
+    ui->vspCombo->blockSignals(true);
+    ui->vspCombo->addItem(QString("None"), i++);
+    if (!ui->vspeCheck->isChecked())
+    {
+        int i = 0;
+        foreach(const QSerialPortInfo & serialPortInfo, QSerialPortInfo::availablePorts())
+        {
+            ui->vspCombo->addItem(serialPortInfo.portName(), i++);
+        }
+    }
+    else {
+        for (int f = 1; f < 100; f++) {
+            ui->vspCombo->addItem(QString("COM%1").arg(f), f);
+        }
+    }
+    ui->vspCombo->blockSignals(false);
+
+#endif
+
+
+
     setDefaultColors(); // set of UI colors with defaults populated
     setDefPrefs(); // other default options
     loadSettings(); // Look for saved preferences
@@ -318,18 +358,6 @@ wfmain::wfmain(const QString serialPortCL, const QString hostCL, QWidget *parent
     periodicPollingTimer->setSingleShot(false);
     connect(periodicPollingTimer, SIGNAL(timeout()), this, SLOT(runPeriodicCommands()));
 
-
-    ui->serialDeviceListCombo->blockSignals(true);
-    ui->serialDeviceListCombo->addItem("Auto", 0);
-    int i=0;
-    foreach (const QSerialPortInfo &serialPortInfo, QSerialPortInfo::availablePorts())
-    {
-        portList.append(serialPortInfo.portName());
-        ui->serialDeviceListCombo->addItem(serialPortInfo.portName(), i++);
-    }
-    ui->serialDeviceListCombo->addItem("Manual...", 256);
-    ui->serialDeviceListCombo->blockSignals(false);
-
     freq.MHzDouble = 0.0;
     freq.Hz = 0;
 
@@ -641,8 +669,8 @@ void wfmain::openRig()
         connect(rig, SIGNAL(haveSerialPortError(QString, QString)), this, SLOT(receiveSerialPortError(QString, QString)));
         connect(rig, SIGNAL(haveStatusUpdate(QString)), this, SLOT(receiveStatusUpdate(QString)));
         
-        connect(this, SIGNAL(sendCommSetup(unsigned char, udpPreferences)), rig, SLOT(commSetup(unsigned char, udpPreferences)));
-        connect(this, SIGNAL(sendCommSetup(unsigned char, QString, quint32)), rig, SLOT(commSetup(unsigned char, QString, quint32)));
+        connect(this, SIGNAL(sendCommSetup(unsigned char, udpPreferences,QString)), rig, SLOT(commSetup(unsigned char, udpPreferences,QString)));
+        connect(this, SIGNAL(sendCommSetup(unsigned char, QString, quint32,QString)), rig, SLOT(commSetup(unsigned char, QString, quint32,QString)));
 
         connect(this, SIGNAL(sendCloseComm()), rig, SLOT(closeComm()));
         connect(this, SIGNAL(sendChangeLatency(quint16)), rig, SLOT(changeLatency(quint16)));
@@ -660,7 +688,7 @@ void wfmain::openRig()
     if (prefs.enableLAN)
     {
         ui->lanEnableBtn->setChecked(true);
-        emit sendCommSetup(prefs.radioCIVAddr, udpPrefs);
+        emit sendCommSetup(prefs.radioCIVAddr, udpPrefs,prefs.virtualSerialPort);
     } else {
         ui->serialEnableBtn->setChecked(true);
         if( (prefs.serialPortRadio == QString("auto")) && (serialPortCL.isEmpty()))
@@ -715,7 +743,7 @@ void wfmain::openRig()
         // Here, the radioCIVAddr is being set from a default preference, which is for the 7300.
         // However, we will not use it initially. OTOH, if it is set explicitedly to a value in the prefs,
         // then we skip auto detection.
-        emit sendCommSetup(prefs.radioCIVAddr, serialPortRig, prefs.serialPortBaud);
+        emit sendCommSetup(prefs.radioCIVAddr, serialPortRig, prefs.serialPortBaud,prefs.virtualSerialPort);
     }
 
     ui->statusBar->showMessage(QString("Connecting to rig using serial port ").append(serialPortRig), 1000);
@@ -791,6 +819,8 @@ void wfmain::setDefPrefs()
     defPrefs.niceTS = true;
     defPrefs.enableRigCtlD = false;
     defPrefs.rigCtlPort = 4533;
+    defPrefs.enableVSPE = false;
+    defPrefs.virtualSerialPort = QString("none");
 
     udpDefPrefs.ipAddress = QString("");
     udpDefPrefs.controlLANPort = 50001;
@@ -868,6 +898,13 @@ void wfmain::loadSettings()
     prefs.radioCIVAddr = (unsigned char) settings.value("RigCIVuInt", defPrefs.radioCIVAddr).toInt();
     prefs.serialPortRadio = settings.value("SerialPortRadio", defPrefs.serialPortRadio).toString();
     prefs.serialPortBaud = (quint32) settings.value("SerialPortBaud", defPrefs.serialPortBaud).toInt();
+    prefs.enableVSPE = settings.value("EnableVSPE", defPrefs.enableVSPE).toBool();
+    prefs.virtualSerialPort = settings.value("VirtualSerialPort", defPrefs.virtualSerialPort).toString();
+    int vspIndex = ui->vspCombo->findText(prefs.virtualSerialPort);
+    if (vspIndex != -1) {
+        ui->vspCombo->setCurrentIndex(vspIndex);
+    }
+    ui->vspeCheck->setChecked(prefs.enableVSPE);
     settings.endGroup();
 
     // Misc. user settings (enable PTT, draw peaks, etc)
@@ -1047,6 +1084,8 @@ void wfmain::saveSettings()
     settings.setValue("RigCIVuInt", prefs.radioCIVAddr);
     settings.setValue("SerialPortRadio", prefs.serialPortRadio);
     settings.setValue("SerialPortBaud", prefs.serialPortBaud);
+    settings.setValue("EnableVSPE", prefs.enableVSPE);
+    settings.setValue("VirtualSerialPort", prefs.virtualSerialPort);
     settings.endGroup();
 
     // Misc. user settings (enable PTT, draw peaks, etc)
@@ -3367,6 +3406,17 @@ void wfmain::on_txLatencySlider_valueChanged(int value)
     ui->txLatencyValue->setText(QString::number(value));
 }
 
+void wfmain::on_vspCombo_currentIndexChanged(int value) 
+{
+    Q_UNUSED(value);
+    prefs.virtualSerialPort = ui->vspCombo->currentText();
+}
+
+void wfmain::on_vspeCheck_clicked(bool checked)
+{
+    prefs.enableVSPE = checked;
+}
+
 void wfmain::on_toFixedBtn_clicked()
 {
     emit setScopeFixedEdge(oldLowerFreq, oldUpperFreq, ui->scopeEdgeCombo->currentIndex()+1);
diff --git a/wfmain.h b/wfmain.h
index a49ac03..f4697c1 100644
--- a/wfmain.h
+++ b/wfmain.h
@@ -131,8 +131,8 @@ signals:
     void sayFrequency();
     void sayMode();
     void sayAll();
-    void sendCommSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate);
-    void sendCommSetup(unsigned char rigCivAddr, udpPreferences prefs);
+    void sendCommSetup(unsigned char rigCivAddr, QString rigSerialPort, quint32 rigBaudRate,QString vsp);
+    void sendCommSetup(unsigned char rigCivAddr, udpPreferences prefs, QString vsp);
     void sendCloseComm();
     void sendChangeLatency(quint16 latency);
     void initServer();
@@ -361,6 +361,10 @@ private slots:
 
     void on_audioSampleRateCombo_currentIndexChanged(QString text);
 
+    void on_vspCombo_currentIndexChanged(int value);
+
+    void on_vspeCheck_clicked(bool checked);
+
     void on_scopeEnableWFBtn_clicked(bool checked);
 
     void on_sqlSlider_valueChanged(int value);
@@ -598,6 +602,8 @@ private:
         bool enableRigCtlD;
         quint16 rigCtlPort;
         colors colorScheme;
+        bool enableVSPE;
+        QString virtualSerialPort;
     } prefs;
 
     preferences defPrefs;
diff --git a/wfmain.ui b/wfmain.ui
index 0956af4..ff1084e 100644
--- a/wfmain.ui
+++ b/wfmain.ui
@@ -18,7 +18,7 @@
     <item>
      <widget class="QTabWidget" name="tabWidget">
       <property name="currentIndex">
-       <number>0</number>
+       <number>3</number>
       </property>
       <widget class="QWidget" name="mainTab">
        <attribute name="title">
@@ -2064,7 +2064,7 @@
            </widget>
           </item>
           <item>
-           <spacer name="horizontalSpacer_8">
+           <spacer name="horizontalSpacer_10">
             <property name="orientation">
              <enum>Qt::Horizontal</enum>
             </property>
@@ -2076,6 +2076,23 @@
             </property>
            </spacer>
           </item>
+          <item>
+           <widget class="QLabel" name="vspLabel">
+            <property name="text">
+             <string>Virtual Serial Port</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="vspCombo"/>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="vspeCheck">
+            <property name="text">
+             <string>Use VSPE Driver</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </item>
         <item>
@@ -2358,7 +2375,7 @@
      <x>0</x>
      <y>0</y>
      <width>934</width>
-     <height>22</height>
+     <height>21</height>
     </rect>
    </property>
   </widget>