Daniel Verite wrote: > Bruce Momjian wrote: > > > Is there a problem with a DLL writing to a file descriptor opened by > > application code? I would think not, but perhaps. > > After some more testing, I've found out that it works only if the > application code uses the shared version of the C library > (msvcrt.dll) > That means compiling with the /MD or /MDd options, or in > the GUI, selecting in the project settings, > C/C++ -> Code Generation -> Use runtime library -> Multithread DLL > (or Debug Multithreaded DLL) > That's apparently not the default when creating a new application > with Visual Studio. > > libpq.dll must also having been compiled with /MD as well, but > that should be the case unless the OP changed that himself > in libpq/win32.mak Yep, library version mismatch --- now documented. -- Bruce Momjian | http://candle.pha.pa.us pgman@xxxxxxxxxxxxxxxx | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match