我是VB.net的新手,我正在尝试运行一个半中间脚本来检查某些文件是否打开.当它第一次打开时,它会检查一个特定的程序,然后它将继续检查计时器上的不同程序.当我运行代码时,Sub Timer1永远不会运行,我将它设置为每20秒运行一次..

Imports System.Net
Imports System.Text.RegularExpressions

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load
        If (Process.GetProcessesByName("PROGRAM1").Length >= 1) Then
            MessageBox.Show("This Client is already running!","IG Error",MessageBoxButtons.OK,MessageBoxIcon.Stop)
            Environment.Exit(0)
        Else
            Process.Start(System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory,"program.exe"))
            '''' OPEN PROGRAM ABOVE ''''
        End If
        For Each frm As Form In Application.OpenForms
            frm.WindowState = FormWindowState.Minimized
        Next frm
    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Timer1.Tick
        If (Process.GetProcessesByName("PROGRAM2").Length >= 1) Then 'CHECK FOR PROGRAM
            MessageBox.Show("Program is running!",MessageBoxIcon.Stop)
            Environment.Exit(0)
            Form3.Show()
        Else
            MessageBox.Show("Program is not running!")
        End If
    End Sub
End Class

以上是我已经拥有的代码..我的计时器子要么没有运行,要么没有每20秒检查一次.
有任何想法吗？