[pypy-issue] Issue #2442: pypy2-v5.5.0 sandbox issues Windows (pypy/pypy)

[rauts]

New issue 2442: pypy2-v5.5.0 sandbox issues Windows
https://bitbucket.org/pypy/pypy/issues/2442/pypy2-v550-sandbox-issues-windows

rauts:

Building the executable with
```
C:\pypy\pypy\goal>C:\pypy\pypy.exe C:\pypy\rpython\bin\rpython -O2 --sandbox targetpypystandalone.py
```
works. But runnig it results into 
```
C:\pypy>pypy.exe pypy\sandbox\pypy_interact.py pypy\goal\pypy-c.exe
Not implemented: sandboxing for external function 'GetFullPathNameA'
debug: OperationError:
debug:  operror-type: RuntimeError
debug:  operror-value: None
[Subprocess exit code: 1]
```
Something similar was discussed over two years ago #1876. I'm not sure if I have to use the version from before 2014-10-05 or if there are any other options.