There is a quick and easy way to access lists of students on TigerNet. First, log into TigerNet with your DWU credentials. Click on the "Faculty" tab near the top of the page. 
After that, navigate to the middle-left side of the page under "Course List for *your name*" and you should see the classes you are teaching for this semester. You can click the drop down and select "Class List.
Once you are there you should see all of the students in that particular class. On this page, you can export it to Excel, email some or all of the students, see their advisors and much more.