ShuttlePro.dll is the Driver of WHB04-L for MACH3 cnc control system. 
You could externd the IO input with our wireless handle.To do reset,start,stop etc. 
The handle is just like
ShuttlePRO,you coul do jog continue and step with the handle.
In all,you could control much things if you had our wireless WHB04-L

installation:
first you must install mach3 and then insert WHB04-L handle usb controller.then  install the 
batteries to WHB04-L handle's cell box.

1.You should copy the ShuttlePro.dll to Mach3\plugins\ directroy;
2.M930.m1s is the probez file.      You should copy the it to  Mach3\macros\Mach3Mill directroy;
3.M990.m1s is the ref all home file.You should copy the it to  Mach3\macros\Mach3Mill directroy; 
4.M200.m1s file.                    You should copy the it to  Mach3\macros\Mach3Mill directroy; 
5.M201.m1s file.                    You should copy the it to  Mach3\macros\Mach3Mill directroy; 
6.you  could change the macro file M930.m1s and M990.m1s to satisfy your cnc system;