OpenWorklist Platform for WinForm

What value for Platform should I use (instead of "ASP")when I am trying to access the worklist from a WindowsApp.

When I am accessing my WorkList, I am getting an empty worklist with 0 worklistitems though I can see them in the workspace. I am accessing them from WinForm. Her's my code:

Dim myConn As New K2ROM.Connection
Dim myProc As K2ROM.ProcessInstance
Dim myWList As K2ROM.Worklist
Dim myWLItem As K2ROM.WorklistItem
Dim WLItem As K2ROM.WorklistItem

myConn.Open("myK2Server")
myProc = myConn.OpenProcessInstance(txtProcID.Text)
myWList = myConn.OpenWorklist("ASP")

Thanks for your help in advance!