Hi,
I'm developping a control to work with FTP servers. I use Ftpxxx(...) API functions, which almost all return the error status with the function 'GetLastError'; no problem. The problem is that it returns error numbers like 12003 or 12017, all involved to Ftp functions and NO ONE OF THEM IS LISTED IN 'GetLastError' ERRORCODES!!.
I've found some of them looking at Mircosoft's web (not all which appeared!) but it only returns this error nor the list of all the possibilities. It's a problem!..I don't know how recover from an unknown error!!

Anyone knows where to find these errors?

Thanks in advance.