Thread.join problem

Hi

VB Code:

If iLottNo(0) > 0 Then
                    Dim Thread0 As New System.Threading.Thread(AddressOf clsIssueTickets.IssueSeries0)
                    Thread0.Start()
                    If Thread0.Join(4000) Then 'Set time out of thread
                        iStart(0) = clsIssueTickets.iReturnStartNo(0)
                        iEnd(0) = clsIssueTickets.iReturnEndNo(0)
                        If iStart(0) > 0 Then
                            Dim iCtr0 As Integer
                            For iCtr0 = iStart(0) To iEnd(0) Step 100
                                sOutput = sOutput & iCtr0 & "-09 "
                            Next
                        End If
                    End If
                End If

code after Thread0.Join(4000) does not executes. why?

Thread0.Join(4000) only returns True, which cause the rest of the code to execute, IF clsIssueTickets.IssueSeries0 is finished executing within the designated 4000 milliseconds. So it sounds like clsIssueTickets.IssueSeries0 is taking longer than that to finish executing.