A simple but useful code to have. This checks if the user has run the application before.
Instructions
1. Add a setting to My.Settings named isFirstRun by going to Project -> Properties -> Settings Tab. Also make this setting a Boolean and set its value to True
VB.NET Code:
  1. Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
  2.         If My.Settings.isFirstRun = True Then
  3.             'CODE HERE - THIS IS THE FIRST RUN
  4.             My.Settings.isFirstRun = False
  5.             My.Settings.Save()
  6.         ElseIf My.Settings.isFirstRun = False Then
  7.             'CODE HERE - THIS IS NOT THE FIRST RUN
  8.         End If
  9.     End Sub