DNN Scheduler won't run my custom schedule

Question

I have created a class Library and made sure it inherits

DotNetNuke.Services.Scheduling.SchedulerClient

And have then overrided the DoWork() sub.

Then in dnn host settings > scheduler added a new scheduler Item.

in the textbox marked : Full Class Name and Assembly:

Namespace.Classname, Dllname

checked the Enable Schedule box and added a run time interval of 5mins and enabled catch up.

also added the list of tables that the class uses. and keep 5 records of history

I then saved it,

In the view schedule Status I get this:

Name          |  Next Start              |  OverDue(s)  | Time Remaining
Sub reminder  |  11/12/2010 9:52:02 AM   |  3.5         |  0

Using the scheduler in request mode.

Thanks in advance for any help.

---

Update :

Ok, I created a new class library project called "SubRenewal" Renamed the vb file Test and added the below to the file

Namespce Matts
 Public Class Test
  Inherits Dnn.Services.Scheduling.SchedulerClient
   Public overrides Sub DoWork()
     Me.ScheduleHistoryItem.addLogNote("I ran")
   end Sub
 End Class
End Namespace

On the Scheduler Page I put : Friendly Name Tester Full Class name and assembly Matts.Test,SubRenwal Enabled Yes Time Lapse 10 s Rety frequency - Run on Event None And left everything else blank and saved it. Still nothing in Scheduler or Item History. Also theres nothing in the event viewer

Answer 1

Firstly Id Like to thank Lakhlan, for his help without him I wouldnt of spotted the mistake.

I beleive the issue was one of two things first one is that I was registering a reference to another custom module to allow me to localise some of the output text.

Also I added the new constructor below

Public Sub New(ByVal objSceduleHistoryItem As DotNetNuke.Services.Scheduling.ScheduleHistoryItem)
        MyBase.New()
        Me.ScheduleHistoryItem = objSceduleHistoryItem
    End Sub

Thanks again would up vote you for your help but cant :(