How to perform SharePoint workflow task in Windows Form Application?

Question

Dear all,

As captioned, is it possible to perform SharePoint workflow task in Windows Form Application? And how?

We are running one MOSS application as below:-

1. user use InfoPath request form to trigger workflow attached to SharePoint document library

2. all sub-sequent tasks are performed by users by InfoPath task form within SharePoint site through "Workflow Task" list (open, checkout, approve or reject) till the task completed.

My question is: is it possible to access task via Windows Form Application? To open the task, to update particular fields, to submit for approval or reject? And how if it's possible? Much appreciate if any sample code lines provided.

Thanks & best regards, Leon