test_issue_8959_b fails when run from a service (in this case, from a buildslave running as a service).
It appears to count the number of open windows, expecting a non-zero value. But when run as a service, it looks like the return count is (correctly) zero.
FAIL: test_issue_8959_b (ctypes.test.test_callbacks.SampleCallbacksTestCase)
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Traceback (most recent call last):
File "C:\buildslave\trunk.moore-windows\build\lib\ctypes\test\test_callbacks.py",
line 208, in test_issue_8959_b
self.assertFalse(windowCount == 0)
AssertionError: True is not False