diff --git a/confvirtualmot.w b/confvirtualmot.w
index f7eb1c95..5a8110da 100644
--- a/confvirtualmot.w
+++ b/confvirtualmot.w
@@ -12,11 +12,14 @@ This objects data structure:
 typedef struct __CONFVIRTMOT {
 	pObjectDescriptor pDes;
 	pIDrivable pDriv;
+	pICallBack pCall;
+	char *name;
 	char *scriptName;
 	char *readScript;
 	int motorList;
 	float targetValue;
 	int targetReached;
+	int posCount;
 	char scriptError[512];
 	int  parseOK;
 }ConfigurableVirtualMotor, *pConfigurableVirtualMotor;
@@ -25,11 +28,14 @@ The fields are:
 \begin{description}
 \item[pDes] The standard object descriptor.
 \item[pDriv] The drivable interface
+\item[pCall] The callback interface
+\item[name] The name of the virtual motor
 \item[scriptName] The name of the program to calculate the new positions
 of the real motors.
 \item[readScript] A script to read back the current value of the virtual motor.
 \item[motorList] A list of the motors to start and control.
 \item[targetValue] The target value we wanted to have.
+\item[posCount] This counter prevents the callback from being invoked too often.  The frequency is currently set to every 10 cycles through the task loop.
 \item[targetReached] A flag which becomes true when a check has showed that
 all desired motors have reached their targets.
 \item[scriptError] A temporary buffer holding all errors encountered