Comment 3 for bug 656938

I ran inkscape with gdb (within cygwin) and then I don't get the windows "Phyton.exe has crashed.."-dialog, but Inkscape tells me:
Traceback (most recent call last):

  File "wmf_output.py", line 27, in <module>

    cmd = get_command()

  File "C:\Inkscape\share\extensions\uniconv_output.py", line 99, in get_command

    p = Popen('uniconvertor', shell=True, stdout=PIPE, stderr=PIPE).wait()

  File "C:\Inkscape\python\Lib\subprocess.py", line 626, in __init__

    errread, errwrite) = self._get_handles(stdin, stdout, stderr)

  File "C:\Inkscape\python\Lib\subprocess.py", line 734, in _get_handles

    p2cread = self._make_inheritable(p2cread)

  File "C:\Inkscape\python\Lib\subprocess.py", line 773, in _make_inheritable

    DUPLICATE_SAME_ACCESS)

WindowsError: [Error 6] The handle is invalid

The JessInk zipped pdf or png output (*.zip) and The HP Graphics ... *.PLT crashes with:
Traceback (most recent call last):

  File "jessyInk_export.py", line 172, in <module>

    e = MyEffect()

  File "jessyInk_export.py", line 77, in __init__

    self.inkscapeCommand = self.findInkscapeCommand()

  File "jessyInk_export.py", line 164, in findInkscapeCommand

    proc = subprocess.Popen([command + " --without-gui --version"], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

  File "C:\Inkscape\python\Lib\subprocess.py", line 626, in __init__

    errread, errwrite) = self._get_handles(stdin, stdout, stderr)

  File "C:\Inkscape\python\Lib\subprocess.py", line 734, in _get_handles

    p2cread = self._make_inheritable(p2cread)

  File "C:\Inkscape\python\Lib\subprocess.py", line 773, in _make_inheritable

    DUPLICATE_SAME_ACCESS)

WindowsError: [Error 6] The handle is invalid