Infoview (Crystal Reports Server 2008) - Use infoview over the internet

You may indeed have licensing issues if you're allowing external users (not employees of your company) to access your system. I'd double-check your licensing agree to be sure.

That being said, you have a number of options:

1) Put the web server in a DMZ and force external users to go through it.  Since you're using Crystal Reports Server, it's probably safe to assume you don't have the web server installed separately (most companies don't, since it's a single server product).  You'd need to install and configure a web server separately and then configure Crystal Reports server to use it.  That can be a little tricky, since the Crystal Reports server doesn't let you install components separately.

2) Open up a port on your firewall so users can access Infoview directly.  This is not a very secure method, however.

3) Force users to authenticate through a VPN, after which they should be able to see network resources as if they were logged in locally

4)  Use some sort of remote access framework like Citrix Metaframe

6)  Allow users to remote desktop into a dedicated machine and then access infoview from that machine..

~Kurt