error during .NET Remoting

Hi

When I run the reports in my .NET application, I get an error message when I attempt to use .NET remoting while processing a report :

"The type CrystalDecisions.CrystalReports.Engine.FormatEngine in Assembly CrystalDecisions.CrystalReports.Engine, Version=11.2.3300.0, Culture=neutral, PublicKeyToken=692fbea5521e1304 is not marked as serializable."

I checked the net for solution, and the work around for this error message, use Report Web Services, or the Crystal Enterprise Report Application Server (CE RAS) or Crystal Enterprise (CE) .NET SDK in your application.

But this will be a major change in the application.

Has anybody else got the same error and found a simpler solution ?

Thanking in advanceSee if you find answer here
http://support.businessobjects.com/