eshell-force-execution

eshell-force-execution is a variable defined in `esh-ext.el'.
Its value is

nil

Documentation:
If non-nil, try to execute binary files regardless of permissions.
This can be useful on systems like Windows, where the operating system
doesn't happen to honor the permission bits in certain cases; or in
cases where you want to associate an interpreter with a particular
kind of script file, but the language won't let you but a '#!'
interpreter line in the file, and you don't want to make it executable
since nothing else but Eshell will be able to understand
`eshell-interpreter-alist'.

You can customize this variable.