Running a program with libpqxx, getting error: The application was unable to start correctly (0xc000007b). Click OK to close the application.

[aw18]

I was able to successfully build the Static library for libpqxx using the command:
nmake /f win32/vc-libpqxx.mak STATIC
on the Developer Command Prompt for VS2013.

I then copied and paste one of the sample programs, such as below:

#include "stdafx.h"
#include
#include <pqxx/pqxx>

using namespace std;
using namespace pqxx;

int main(int argc, char *argv[])
{
try {
connection C("dbname = test user = postgres password = rcm
hostaddr = 127.0.0.1 port = 5434");
/if (C.is_open()) {
cout << "Opened database successfully: " << C.dbname() << endl;
}
else {
cout << "Can't open database" << endl;
return 1;
}
C.disconnect();/
}
catch (const std::exception &e) {
cerr << e.what() << std::endl;
return 1;
}
return 0;
}

Successfully compiled but when I run the executable, I get a pop-up error that states:
The application was unable to start correctly (0xc000007b). Click OK to close the application.

Searching online, it seems to be due to a 32-bit application calling a 64-bit DLL issue. I've used Dependency Walker (but people online states it's too old and isn't accurate, i.e. 2006) and I've used ProcessMonitor but nothing stands out.

Any advice?

[aw18]

Okay I resolved it using ProcessMonitor.

My PATH env variable was including the MinGW's libpq.dll. So all I had to do was remove all instances of MinGW reference in my PATH and it works!

[jtv]

Use static libraries if you can... :/