Websphere MQ C++ client crashes in VS2013- library/linker issues?
dll, ibm-mq, visual-studio-2013, winapi
Solution
Its a current release (up to and including 7.5) bug/restriction - the compiler that MQ produces its C++ libraries from, and the Visual Studio 2012+ compilers are apparently binary incompatible. You cannot solve nor workaround this other than to use the C or .NET API's depending on what you are trying to do...
As @John M Gant commented below, here is the official support page from IBM. BTW, it looks like MQ Series 8.0 is supported for C++ in VS2012
Problem
I just upgraded a project to VS2013 from VS2010 and now it crashes whenever I send a message via MQ, yet it worked fine under VS2010. I suspected it was something to do with VS2013, so I built one of the demo apps that comes with MQ - imqwrld.cpp which is a simple "hello world" app. This code alone is enough for the debug runtime library to throw an exception: ``` #include <imqi.hpp> // WebSphere MQ C++ int main ( int argc, char * * argv ) { ImqQueue * p = new ImqQueue(); delete p; return 0 } ``` when the ImqObject is deleted, the c rtl detects memory corruption. I suspect it is because of DLL hell. The MQ dlls have a dependency on msvcr80.dll and my program uses a different version of the library - msvcr120d.dll. Any suggestions on how I can solve this? I'm using MQ client 7