Consider two .net dlls. The first, "application.dll" contains the main business logic and data access code. The second, "webservice.dll" consists mostly of WebMethods that link to objects and methods with application.dll for the purpose of providing webservice calls to existing code.
What changes (e.g. add new classes, add a new field or method to an existing class etc) can and can't be made to application.dll without requiring a recompile of webservice.dll?