Secure my report files

Hello,

I have a .NET application that displays my crystal reports over the web. This application is compiled into a dll which secures my .rpt files from the end user.

However, I have a scheduling application written in vb that can run reports and either print them or email them with out any user interaction. The problem I am having is that I need to have access to the .rpt files so that I can generate the report. Obviously I can put the .rpt files on a customers computer but I don't view this as an acceptable approach. I really don't like the idea of a customer having access to the inner workings of my reports.

I've done all sorts of research for ways to encrypt a report and such but unfortunately I have not found any ways of doing this. Does anyone know of any way to encrypt a crystal report? If not, has anyone tried to do anything similar to this? I'm certainly open to all suggestions at this point...

Crystal: Version 9
VB: Version 6

Thanks,
Stephanie