EMDK Requires DataWedge?



I have developed an app that runs on several  of our TC70s it reads barcodes from the scanner and does other tasks.


I just bought another TC70.  They button on the left does not fire the scanner.  My app is not able to get any response from the barcode scanner.

This unit does not have DataWedge installed.


Is this required?  If so, how do I resolve this issue?