You might need to create a Flash file in Mach's main directory and check to see that the two EXE's are in it for the Remote connection depending on what vertion of Mach you are using.
The updated Mach should have this already...make syre you are using the latest vertion of Mach
Here are the source file for Sothink and Flash: http://www.artsoftcontrols.com/forum/index.php?action=post;board=36.0
Check out the video "Mach 3 Reloaded": http://www.artsoftcontrols.com/forum/index.php?topic=2571.0
If anything isn't working please provide the correct code or Mach OEM code, what platform your using and machine spec's if needed.
The link to download the file is right below this text