How to update help file ?

To update Jeking Point of sale Help file is simply replacing the existing help file (JK_HELP.CHM) with a new one that can be downloaded by clicking the "Update help file" button.

So just click the "Update help file" button then save the file "JK_HELP.CHM" then put it in the folder "\Jeking\Pos", just replace the existing old JK_HELP.CHM with the new downloaded one.