Open a ".exe" with a Button using a file path from a TextBox - vb.net

Question

I have a TextBox called TextBox1, which is filled by a Button that gets a file path using OpenFileDialog. I want a button (Button3) to start several processes one after another with an interval of 2 hours then close it and open the next one.
In total I have 4 different TextBoxes (TextBox1, TextBox2, TextBox3 and TextBox4) and 4 different file paths that I want to open with the same button with the interval I mentioned before.
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
OpenFileDialog1.Title = "Please Select a File"
OpenFileDialog1.InitialDirectory = "C:temp"
OpenFileDialog1.ShowDialog()
End Sub
Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk
Dim strm As System.IO.Stream
strm = OpenFileDialog1.OpenFile()
TextBox1.Text = OpenFileDialog1.FileName.ToString()
If Not (strm Is Nothing) Then
'insert code to read the file data
strm.Close()
End If
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
OpenFileDialog2.Title = "Please Select a File"
OpenFileDialog2.InitialDirectory = "C:temp"
OpenFileDialog2.ShowDialog()
End Sub
Private Sub OpenFileDialog2_FileOk(sender As Object, e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog2.FileOk
Dim strm As System.IO.Stream
strm = OpenFileDialog2.OpenFile()
TextBox3.Text = OpenFileDialog2.FileName.ToString()
If Not (strm Is Nothing) Then
'insert code to read the file data
strm.Close()
End If
End Sub
Private Sub TextBox3_TextChanged(sender As Object, e As EventArgs) Handles TextBox3.TextChanged
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
End Sub
End Class

Answer 1

To launch a new process use:
dim myProcess = Process.start(filename)
You dont' need the code that does the following:
Dim strm As System.IO.Stream
strm = OpenFileDialog2.OpenFile()
If Not (strm Is Nothing) Then
strm.Close()
End If
This is opening the exe file as if it were trying to read the data from it.
Instead just use
dim process = Process.Start(OpenFileDialogX.Filename)
Note: your initial directory seems to be c:temp not c:\temp as it probably should be