I am getting ready to configure a new Windows 2003 server standard on an existing server 2003 domain. This server is going to contain an accounting application that will be web based and our employees will be accessing and logging into from different locations. My question is, will I need Windows CALs for it. There seems to be alot of confusion as to the necessity of them. My reseller says I do because we are authenticating to the app but the consulting firm who we are buying our accounting app from says we don't need CALs because we already own CALs for the domain controller. Anybody know whether I need to purchase these or not.