[VB.NET] [Simple and easy] The application is allready running [SRC]

[★ASI_F★™]

On upside in your project put this code

Code:

Sub CheckIfAlreadyRunning()
        If Not Process.GetProcessesByName(Process.GetCurrentProcess.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

Code:

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

Done!