Rule #9
Do you use Microsoft.VisualBasic.dll for Visual Basic.NET projects?
  v3.0 Posted at 20/10/2010 7:56 PM by system
The Microsoft.VisualBasic library is provided to ease the implementation of the VB.NET language itself. For VB.NET, it provides some methods familiar to the VB developers and can be seen as a helper library. It is a core part of the .NET redistribution and maps common VB syntax to framework equivalents, without it some of the code may seem foreign to VB programmers.
Microsoft.VisualBasic .NET Framework
CInt, CStr Convert.ToInt(...), ToString()
vbCrLf Environment.NewLine, or "\r\n"
MsgBox MessageBox.Show(...)