This appendix allows you to look up a namespace and determine which assemblies export it. This information is helpful when constructing the appropriate /reference:<file list> command-line option for the C# and VB.NET compilers.
Namespace
DLLs
System.ComponentModel
System.dll, System.Windows.Forms.dll
System.Drawing
System.Drawing.dll
System.Drawing.Drawing2d
System.Drawing.Imaging
System.Drawing.Printing
System.Drawing.Text
System.Windows.Forms
System.Windows.Forms.dll
System.Windows.Forms.Design