My.Setting variable not reset after making exe

Question

I am making my application as exe file.. In my project i am using setting variable to count the number of times the applications opened.. if the user opens the application more than 5 times i want to restrict the user from opening the application again. for that i am using the following coding in form shown

        Private Sub T01SaleBill_Shown(ByVal sender As Object, _ 
           ByVal e As System.EventArgs) Handles Me.Shown
                 if my.settings.openedtimes >5 then
                 me.close()
                 else
                 my.settings.openedtimes += 1;
                 my.settings.save()
                end if;

     End Sub

the exe file created and it works fine through my exe..after the application opened 5 times.. the form closed.. now i reset the my.settings.openedtimes as 0 and again create a new exe. now i uninstall previous exe.. and run the new exe. this times also my form closed. i think the setting variable my.settings.openedtimes holds value greater than 5 as previous. i can't understand what is the problem with this settings variable.. can anyone help me what's the problem here..

Answer 1

Add a boolean setting named newvers and set it to true in the settings designer. Then try this

Private Sub Form1_Shown(sender As Object, _
                        e As EventArgs) Handles Me.Shown
    If My.Settings.newvers Then
        My.Settings.Upgrade() 'get previous values
        'change values that should not be carried over
        My.Settings.openedtimes = 1
        My.Settings.newvers = False 'turn new version off
    Else
        My.Settings.openedtimes += 1
    End If
    If My.Settings.openedtimes > 5 Then Me.Close()
    My.Settings.Save()
End Sub