[Simple and easy] The application is allready running [SRC]

[io.kent]

On upside in your project put this code means after public class Form1.

Sub CheckIfAlreadyRunning()
If Not Process.GetProcessesByName(Process.GetCurrentProce ss.ProcessName).Length > 1 Then Exit Sub
MsgBox("The application is allready running", MsgBoxStyle.Critical, "System")
End
End Sub

And now just in forum load put this

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
CheckIfAlreadyRunning()
End sub

[Byte-ul]

Daca aceeasi aplicatie este rulata sub 2 nume diferite codul asta nu va functiona.

[em]

Eu fac asa

If App.PrevInstance Then
    Unload Me
    End
End If