code with exec fails when running inside Eclipse on Windows 

Nodeclipse Core version 0.7.0.201311010637  

```
require('child_process').exec('sc queryex', function (error, stdout, stderr) {
    console.log(stdout);
    console.log(error);
});
```

results in

```
{ [Error: spawn Unknown system errno 203]
  code: 'Unknown system errno 203',
  errno: 'Unknown system errno 203',
  syscall: 'spawn' }
```

Code runs fine from Windows command line.
