I've tried two methods one with NWadmin.exe. This is kind of confusing.
What is the difference between PurgeHistoryListData and PurgeWorkflowData? I guess the data I see when I view workflow history is Workflow data?
Can I get some examples of actual commands, the manuals don't give many examples? The manuals don't have examples.
Also I've seen in PurgeHistoryListData that it hangs if I don't add the -silent parameter. I'm not sure I've accomplished anything with the following command--it always tells me the same thing;
Wouldn't I expect some workflow instance ids to be deleted? I'm obviously missing something.