L.S., I am having troubles with DLLs; my application (Haskell, C and C++) gives several messages about DLLs not being found. I added these one by one to the current directory. At a certain point there are just error messages about null pointers and "Segmentation fault/access violation in generated code". When I try to load my application in GHCi, I get more messages about missing DLLs, up to a point where GHCi refuses to load a library because of an unknown section (a bug to be solved in GHC 7.6.2). (Several other programs have the same problem.) Now I am still stuck with a null pointer error message. 1) How can I find out which DLLs my application needs (and which package/library is to blame for it) and 2) how can I find the error location when the crash occurs in C/C++ code (it might be something else than a missing DLL of course)? My system: Windows XP + MinGW/MSYS Haskell platform 2012.4.0.0 The application uses wxHaskell. Regards, Henk-Jan van Tuyl -- http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming --