Quote character
Quote character is used for strings, for instance : "my message".
If you need to include a quote character in a string, you have to use its ASCII code (34) and transform it in a string using CHR$ statement before adding it within the string.
Example :
This message "Orwell told : "bla bla" and WinTask can display it" can be displayed by :
MsgBox("Orwell told : "+CHR$(34)+"bla bla"+CHR$(34)+" and WinTask can display it")