When AutoCAD Map 3D starts, it reads the plugin definition files in the bin folder to determine what plugins are available.
You can use a text editor to create a file with a .tbp extension. For this example, name the file MyTopobasePlugInProject.tbp. Save it in the project directory with your source code. Add it to the list of files in the Visual Studio Solution Explorer dialog box.
The contents of the file are as follows:
<?xml version="1.0" encoding="utf-8"?>
<PlugIn>
<Default
AssemblyName="MyTopobasePlugInProject.dll"
Namespace="MyTopobasePlugInProject"
DocumentKey=""
MapName=""
Priority="100"
ExecutionTargetWeb="True"
ExecutionTargetDesktop="True"
/>
<DocumentPlugIn ClassName="MyDocument"/>
</PlugIn>