Next time when you post your code in code tags, please dont forget to put linebreaks wherever necessary.. it was hard to read, and i copied your code into a notepad, and put linebreaks to make it readable!


Anyway, try this...

Code:
CFile file;
CFileException e;

file.Open( _T( "C:\\file.txt" ), CFile::modeCreate | CFile::modeReadWrite, &e );
char buffer[50];
memset( buffer, 'A', sizeof(buffer) );
file.Write( buffer, sizeof(buffer) );         
file.Flush( );