Modules and Assemblies
A module is an .exe or .dll file. An assembly is a set of one or more modules that together make up an application. If the application is fully contained in an .exe file, fine—that's a one-module assembly. If the .exe is always deployed with two .dll files and one thinks of all three files as comprising an inseparable unit, then the three modules together form an assembly, but none of them does so by itself. If the product is a class library that exists in a .dll file, then that single .dll file is an assembly. To put it in Microsoft's terms, the assembly is the unit of deployment in .NET.
A module is an .exe or .dll file. An assembly is a set of one or more modules that together make up an application. If the application is fully contained in an .exe file, fine—that's a one-module assembly. If the .exe is always deployed with two .dll files and one thinks of all three files as comprising an inseparable unit, then the three modules together form an assembly, but none of them does so by itself. If the product is a class library that exists in a .dll file, then that single .dll file is an assembly. To put it in Microsoft's terms, the assembly is the unit of deployment in .NET.
