Hi
 
I managed to capture a stack trace for the crash via WinDbg:
 
Frame Index      Call Site                                   Child-SP        Return Address
[0x0]         ntdll!NtTerminateProcess+0x14            0x18aa9fdf88   0x7fffce3cda98
[0x1]         ntdll!RtlExitUserProcess+0xb8            0x18aa9fdf90   0x7fffcd99e82b
[0x2]         KERNEL32!ExitProcessImplementation+0xb   0x18aa9fdfc0   0x7fffcd42a155
[0x3]         msvcrt!_crtExitProcess+0x15              0x18aa9fdff0   0x7fffcd42a7c5
[0x4]         msvcrt!doexit+0x171                      0x18aa9fe020   0x7fffcd41f26d
[0x5]         msvcrt!abort+0x8d                        0x18aa9fe090   0x68281886
[0x6]         libintl_9!libintl_bindtextdomain+0x56    0x18aa9fe640   0x7fff7dcd2e93
[0x7]         LIBPQ!PQenv2encoding+0x1193              0x18aa9fe670   0x7fff7dcd2c9e
[0x8]         LIBPQ!PQenv2encoding+0xf9e               0x18aa9fe6a0   0x7fff7dcc9263
[0x9]         LIBPQ!PQpingParams+0x2ea3                0x18aa9fe6d0   0x7fff7dcc3dcd
[0xa]         LIBPQ!PQconnectPoll+0x90d                0x18aa9feb50   0x7fff7dcc6a1c
[0xb]         LIBPQ!PQpingParams+0x65c                 0x18aa9ff5c0   0x7fff7dcc50eb
[0xc]         LIBPQ!PQsetdbLogin+0x19b                 0x18aa9ff5f0   0x7ff774798078
[0xd]         _HelloWorld!test+0x98                    0x18aa9ff620   0x7ff774796f17
 
It seems to me, that it is related to BUG #17299
 
Regards,
Christian Maurer