External Tool

I am struggling to use the External Tool node to call RoboCopy.exe. Essentially I want to use RoboCopy to copy files due to its multithreaded capability so I need to pass it source, destination and options. I thought I would wrap it in a batch file like

robocopy %1 %2 %3

but it doesn’t seem to work for me. Some pointers please, anyone

Have you tried the Bash node? In cases where the External Tool node is being finicky, the Bash node often can get you there.