I am in desperate need of help.... xD

Here is what I have so far.

Code:
Public Class Form1

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Close()
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Process.Start("D:\data\CCleaner\CCleaner.exe")
    End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Process.Start("D:\data\Manual.dat\Project2.application")
    End Sub

    Private Sub AboutToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AboutToolStripMenuItem.Click

    End Sub

    Private Sub ToolStripTextBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripTextBox1.Click

    End Sub

    Private Sub AboutToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AboutToolStripMenuItem1.Click
        MessageBox.Show("Gator Computers, LLC PC Sales and Repair, Cell Phone and Flat Screen TV Repair 229 West Beacon ST. Philadelphia, MS 39350                                                               Phone: (601)-656-0178                                                                                                        eMail:  [email protected] - [email protected]                                                                                                                                                                  Website: Http://wwww.gatorcomputers.net                                                                                                                                                                                                              This Programs GUI was made by Matthew Kaulfers a Gators Computer employee. All rights reserved 2012.")
    End Sub
End Class
Now in the section of
Code:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Process.Start("D:\data\CCleaner\CCleaner.exe")
    End Sub
It will have another just like it but with different directories to another program so this section will look like this.

Code:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Process.Start("D:\data\CCleaner\CCleaner.exe")
    End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Process.Start("D:\data\malwarebytes\mbam.exe")
    End Sub
What do i need to make the second one launch after the first one is finished and what else do I need to make the first one start automatically... I am a newbie yes i know...

Then on this section

Code:
\Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Process.Start("D:\data\Manual.dat\Project2.application")
    End Sub
How do i get the code to select the disk drive either it be C:, D:, E:, F:,G: etc. Right now it only selects drive D:/ which some computers obviously have different disk drives.