Windows exe, bat, cmd not launching under cygwin /MobaXterm unless extension explicitly provided

I am using a preconfigured cygwin that is packaged into the MobaXterm product. Following is an example of the issue I am facing:

``````\$ sbt package
/usr/bin/bash: /drives/c/apps/sbt/bin/sbt: No such file or directory
``````

The actual command that should have been invoked is:

``````/drives/c/apps/sbt/bin/sbt
``````

So what I need here is some environment variable that tells cygwin a set of potential extensions to file names:

Something along the lines of:

``````export EXE_EXTENSIONS=CMD,cmd,EXE,exe,BAT,bat
``````

``````cmd /c <executable>