Here is a link to a post that explains the steps you need to go through to install Crystal Reports on the client machines:

http://groups.google.com/groups?q=if+you+use+crystal+reports+with+vs7&hl=en&lr=&ie=UTF-8&oe=utf8&selm=%2304KX9mpBHA.2164%40tkmsftngp03&rnum=1


>I have an Application developed in C# having some reports developed using Crysted 8 then migrated to VS.crystal.
>
>How to deploy crystal report DLLs for Applicaiton developed in C# on client's PC.
>
>SETUP.exe created using VS.NET does not register dll required for executing native report viewer!
>
>TIA
>
>Diptesh