>I dont know the reason, but originally it certainly have something to do with some system settings (memory and related). But it has become a basket for all sort of things...
>
>You can build a classlib that map all of this functions to methods with "understandable" name and upload it on UT :-)
>
>>Anyone knows the background of the SYS() commands as to know why it has been done like that? Everytime I need to access one of them, I can't never remember what is the proper number to use. Why wasn't this done with function names that would have been easier to remember?

I posted code to create the PRG-Class in the Classes - VCX category.