1. A computer system for validating arguments provided to an application, comprising: an assembly having validation information for validating one or more arguments provided in a request for activation of an application; an activation executable operably coupled to the assembly for validating the one or more arguments using the validation information before activating the application; and a manifest operably coupled to the activation executable, the manifest having information for identifying the assembly having the validation information for validating the one or more arguments provided in the request for activation of the application.