thanks all guys replied this thread.
I have changed my code using the char[256] or WCHAR[256] for resovling...
I tried using vector<char > or vector <WCHAR> but the character is not right.
btw.I traced the pragrame using new,but when program exit,the object KiwiIndexfrmdata is deconstructed...pointer in the vecter m_vVolRec and char* m_pcharalist in VolRec is deleted by deconstruction...why the memory leak is still reported by VC6?