Visual Basic 2015 Unleashed

The Dll Hell Problem

One of the biggest problems of the COM programming model is the Dll hell. COM components (such as ActiveX controls or type libraries) need to be registered so the system knows where to find them even if they are not available in the application directory. The problem is when you have different versions of the component installed on the same machine. Registration can be painful, and there are often many problems in making an application recognize the correct version of the component. In many cases, an application will not work correctly. This is the reason the situation is called Dll hell. Since version 1.0, the .NET Framework provides a brilliant way to solve this big problem by introducing assemblies and the global assembly ...