Check out this excellent article[^] -- Roger "It's supposed to be hard, otherwise anybody could do it!" - selfquote

If it returns NULL, it is a failure, like an out-of-memory or out-of-address-space condition.  If it returns a non-NULL value, but things crash when you try to use it (i.e. it is truly invalid), then I would offer that the heap information used by calloc(...) is messed up,or you are going too far with the pointer returned.    Although, since calloc(...) has to actually touch the memory to initialize it to zero, it should crash within the call to calloc(...) if the memory it allocated is really invalid.    So, what do you mean by "returns bad pointer"?    Peace! -=- James Please rate this message - let me know if I helped or not! * * * If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong! Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road! See DeleteFXPFiles

LPCSTR(Dir_Name) is a bug. You have to convert the WCHAR to LPCSTR in another string.:mad: Maybe you can use CreateDirectoryW( Dir_Name,NULL);//with a big W for WCHAR Greetings from Germany

Define the buffer to store the unicode characters as wchar_t type. Come online at:- jubinc@skype

Then shouldn't you be using something like W2A()? "Approved Workmen Are Not Ashamed" - 2 Timothy 2:15 "Judge not by the eye but by the heart." - Native American Proverb

Please delete previous message its not good idea write a message without title and do you have any questions? WhiteSky

Try this iRDOStoresPtr pRDOStores = IRDOSession::GetStores() but replace the "IRDOSession::" bit the name of your variable that represents the IRDOSession class/structure, e.g. iRDOStoresPtr pRDOStores = mySessions.GetStores() Jonathan Wilkes Darka [Xanya.net]

Don't bother, is easier to vote 1 than to fix the ***** code, isn't it? :D Anyway, I see a full thread just because COLeVaRIanT is not defined in afxdisp.h or something.

Did you try it?what happend? WhiteSky

I'm not sure that you're using C++ ? If you are, I guess it's COM, is your dll registered ? With regsvr32 ? Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

What function?Whats values of input this function and what return value? WhiteSky

Whats return value of hr? WhiteSky

Maybe your problem is of Redemption.RDOSessionClass if no did you include header files? WhiteSky

manu_2205 wrote: is there any example of it what book are you refering

Do you want to use of functions on the dll in your program ? WhiteSky

You need to load dll LoadLibrary and then use of GetProcAddress for return address of function on dll and in the end use of FreeLibrary WhiteSky