For each foreign export RTS creates a static C wrapper, which is initialized on DLL_PROCESS_ATTACH, but it has no finalizer/destructor to be called during DLL_PROCESS_DETACH. So it will stay alive till the program termination. That's why if one uses a Haskell DLL in their C/C++ project, **consumed memory is not fully released after freeing the library**. [[br]][[br]] There are four files attached to this ticket.

• **HaskellExports.hs** contains exact one foreign export function;
• **CWrapper.cpp** is supposed to contain wrappers to the Haskell functions, described in HaskellExports.hs, but it doesn't because they make no difference;
• **main.cpp**: here in an endless loop the DLL (built with the help of the script below) is loaded and freed at once. Launched program is crashed in a while (because it runs out of memory);
• **build.sh** is a script for building the library.

[[br]] The main program was built with MSVC 2015.