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>Basically, I have been told, a DLL is very similar to an EXE - the main difference being that the EXE has a "load module", or a procedure that will initially run. The procedures in the DLL can only be called by other programs.
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One big difference: An EXE will be given its own memory space by the OS. A DLL will run in the memory space allocated to the EXE that calls it.