The easiest way to solve this problem is to compare the DEBUG settings with the RELEASE settings. You will find that you have additional DEBUG libraries that are missing from the RELEASE settings. Add these to the RELEASE settings and all should be OK. I would advise you clean and rebuild the project (after you have made the changes). Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

thanks for your immediate response and which also solves my problem.Tnahk You Michael

This is why i stopped using CString. It's an all or nothing proposition. If you compile for UNICODE then it wraps an array of wchar_t (unsigned short). If you compile for ANSI then it wraps an array of char. You can't cast between the two, you must convert. Use wcstombs to go from a wchar_t to char. Use mbstowcs to go from a char to wchar_t. [EDIT] Actually what you should do if using CString is go the whole way and use all the _t funtion versions. e.g. _tfopen() will work with a CString regardless of it being UNICODE or ANSI. Most functions that take a char* have a _t*() version. Check the MSDN doc's. [/EDIT] ...cmk Save the whales - collect the whole set

A POSITION is like an iterator for a collection - its not synomous with an integer. The CTypedPtrMap will be keyed by what ever you templateized it on - looking at this a string. So you can find your CContact based on a CSring easily, which is the key into the map. How did you insert into the map? Did you insert all the keys into m_screenName, then insert each CContact into the map based on the key? If so, you can do a GetText on the combo to get the text for item iIndex, then use that look up in the map. CString str; str = m_screenName.GetText(iIndex); CContact* p = NULL; BOOL b = m_Contacts.Lookup(str, p); etc If not, the only thing u can do is to advance around the map until u hit the position at iIndex: POSTION pos = m_Contacts.GetStartPosition(); int nElement = 0; while(pos != NULL && nElement++ <= iIndex) { pos = m_Contacts.GetNextAssoc(pos, strKey, pContact); } You get the idea - iterate around the map until you get to element iIndex.

you can use a hash table and bind ResourceID and HBITMAP CMap m_map; might do the trick if you want to use stl there is map class available