Crystal Reports and Windows Server 2003
Apparently there's some problem running Crystal Reports on Windows Server 2003 in an IIS application. We found it to be intermittent--some boxes have problems, some don't.
The problem you get looks like it's a license key issue. However, it's just a Crystal issue. The workaround they gave us is to run IIS 6 in IIS 5.0 Isolation Mode. All I can say it it's working now. Don't really like the solution, though.