In the child_process module currently there is two flavors of exec function: exec and execFile, which is good, but for spawn, there is only one version, would've been great to have something like child_process.spawnShell. Currently I use this code to emulate it:

child_process.spawn('cmd', ['/s', '/c', command], {windowsVerbatimArguments:true})

but it is platform specific and requires the use of undocumented flag windowsVerbatimArguments