Questions about operation systems!!!!!!

[owenji81]

Hi,

what must a modern operating system kernel provide to support the use of dynamic link libraries?

How is an operating system able to support the updating of a dynamic link library if a number of applications requiring that library are already running, but using an earlier version of the library?

Thanks a lot!
Owen Ji

[redcircle]

what must a modern operating system kernel provide to support the use of dynamic link libraries?

Not sure what you mean by this?



dll's are usually downward compatible. Updated Dll's don't usually take out any functionality just add to the existing. If something needs to be so drastically changed there are usually wrappers to emulate the old functionality so it does not cause problems