better way to exit a program with a thread

[nahya^^]

hi. i just migrated to vb.net yesterday, and i have a bit of trouble exiting a program with a thread.

the program estimates the euler's number in a thread. i can at any time suspend the thread and resume. there's no problem when i make the thread abort when the user clicks stop, but it seems to take longer than just suspending the thread. but there's a problem with suspending a thread. i don't know how to exit the program properly

well, i have a solution but it doesn't seem like a proper way to exit the program. on closing of the form, i have

Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
        If t.IsAlive = True Then
            On Error GoTo Quit
            t.Abort()
            t.Resume()
            t.Abort()
        End If
Quit:
    End Sub

it works perfectly, even when the thread was not even triggered, when the thread is running, and when the thread is suspended. but if i just have the thread abort on exit, when the thread was suspended, it would give me an error. so i had it resume, then abort.

is there a better way to doing this?
thanks.

EDIT:

no wait it doesn't work perfectly
it doesn't close properly when the thread was suspended.