dllss....what are they used for ?

[Harlequin]

What are dll used for.....

[jsmith]

Typical usage is to avoid statically linking a library (such as the C++ runtime library) into every executable. This saves a bit on memory usage since only a single copy of the library is loaded regardless of how many executables use it.

Another typical usage is to provide the ability to upgrade a the library without relinking the executable against the newer version. This is useful if there are bugs in the library that need to be fixed.

etc...

[kbw]

It also allows you to load different versions of code at run-time, like printer drivers for example.