dynamic link library

Overview
A dynamic link library, or DLL, is a kind of file used within Microsoft Windows. It contains compiled, executable (i.e. runtime) code which may be called from other code without having to be (statically) linked during the other code's compile process. DLL files can be updated without requiring the calling code to be updated, and multiple callers may use the same DLL file.

Linux has a similar concept of shared library files, which typically use the file extension .so.

Resources

 * DLL Dump: free DLL files, no registration needed
 * DLL-files.com: free DLL files, no registration needed