Despite the mongodb documentation a file extension is not required to invoke an executable on MS Windows. Though it should be specified in the Path to executable when setting up a service.
On 'nix systems if a file has an extension it must be given to invoke the executable. This is why 'nix Best Practice is to never give an executable a file extension. With the exception of Mono as .Net's ECMA specification requires the .exe to be present. In this case you would use a symbolic link to hide the fact that the .exe exists or invoke it via a script.
Share this highlighthttp://www.safaribooksonline.com/a/mongodb-the-definitive/9544673/