Dear All Friends

i have an problem with windows vista .
i write an program for Readind Data From Serial port in delphi . and then compile it in windows XP . Application is worked very good . but when i do compiled this application in windows Visat , i can't Read any Data from Serial port .

do you know that what happen when compiled with windows vista ?

Do you mean when run in vista or when compiled in vista?

What was the errror?

when i compiled this program in windows xp , it's ok (Reading data whery well) . but when i compiled this program in windows vista then i can't Reciveing any Data from Serial port in windows vista or windows xp .

Then you need to include with it a number of debugging statements that either write to a file or messages to screen or use something like smartinspect to direct various debug informations there...