See my response to your QA question, made an hour before you posted this...Moderator - Please undelete my qustion on MFC in the Quick Answers section and delete that in C/C++/MFC section.[^] It explains how to get to it very easily... Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...

I found out the problem. I passed the size of the wide-char buffer in bytes to mbstowcs_s rather than the size in WORDS. Immediately I corrected this, everything started working fine. Thanks a lot.

Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword; Mani Prabhakar