So, is there a way to get an application directory path under Windows? I remember that there is a way to do this using WinAPI, but how to do this Haskell?
The System.Directory module has some methods to get specific directory names in an OS agnostic manner. The closest method that matches what you want is "getAppUserDataDirectory" which uses the windows API function SHGetFolderPath to get the folder for well known name. IIRC Windows supports a notion of "Constant special item"'s and if getAppUserDataDirectory does not do what you want you can call SHGetFolderPath using the CSIDL you are interested in. The code to do so should be identical to the source for "getAppUserDataDirectory" CSIDL'a are listed here [1] Links. [1] http://msdn.microsoft.com/en-us/library/bb762494%28VS.85%29.a