From: DeskNow Knowledge Base
http://www.desknow.com/kb/

How can I redirect users to use SSL /HTTPS?
http://www.desknow.com/kb/idx/5/191/article/

Simply add this line as the FIRST line in the file C:\Program Files\DeskNow\desknow\jsp\original\Login_default.jsp :

<% if (!request.isSecure()) response.sendRedirect("https://www.mydomain.com/desknow/index.html"); %>

and this line as the FIRST line in the file C:\Program Files\DeskNow\desknow\jsp\pocket\Index.jsp (for PocketPC):

<% if (!request.isSecure()) response.sendRedirect("https://www.mydomain.com/desknow/pocket.html"); %>