Crystal Reports is a 32-bit app and requires 32-bit database drivers in order to connect to data. When "classic" Crystal Reports (e.g., not Crystal for Enterprise) are run within either Crystal Report Server or BusinessObjects, they are run on 32-bit services even though the rest of the platform is 64-bit. If you're looking to integrate Crystal into another application, both 32-bit and 64-bit SDKs are available.
Define what you mean by "data processing".
-Dell