Crystal VCL for Delphi vs Crystal RDC

Hi everyone,

I am currently in the process of migrating from Delphi 4 to Delphi 7.
I have been using crystal VCL with Delphi for over 5 years now and they have worked ok for me.
I am re-evaluating everything and I was wondering what are some advantages of using the Crystal RDC instead of the Crystal VCL? I am not familiar at all with the RDC other than I know what it stands for and have in theory an idea of what it does. My biggest headache with the VCL is the dlls that I need to distribute with my app each time and all the headaches I get with a Citrix/Terminal server environment that come with it. I get so many errors with user rights in those environment when trying to print the report.
I am running crystal Report 8.5 and the VCL control I am using in Delphi 4 is 7.4. I will upgrade to Crystal X and hence my decision now on which to use.

Any help will be appreciated