COMUnit is a testing framework designed for unit testing COM components and Visual Basic applications. This reference manual describes the different interfaces and classes that make up the testing framework. Reading through this manual will give you a look under the hood at how COMUnit works to execute your test code.

COMUnit consists of a main DLL that contains the unit testing framework (COMUnit.dll) as well as several ActiveX controls (COMUnitRunner and COMUnitTrace). This manual provides the reference material for these components.