还真是不一样 不过可以使用另一个webbrowser
工具 选择工具箱项 COM组件 microsoft web browser


以下为测试代码 不报错
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
AxWebBrowser1.Navigate("
http://www.baidu.com")
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
AxWebBrowser1.Document.parentwindow.execscript("alert('111')", "javascript")
End Sub