ICal Core Spec V7 -- Binary Attachments

[Paul Kanieski <paul@xxxxxxxxxxxxx>]

To whom it may concern,

In Version 7 of the Internet Calendaring and Scheduling Core Object
Specification,
there's an example of a binary attachment:

     ATTACH;ENCODING=BASE64;VALUE=BINARY:MIICajCCAdOgAwIBAgICBEUwD
      QYJKoZIhvcNAQEEBQAwdzELMAkGA1UEBhMCVVMxLDAqBgNVBAoTI05ldHNjY
      XBlIENvbW11bmljYXRpb25zIENvcnBvcmF0aW9uMRwwGgYDVQQLExNJbmZvc
        <...remainder of "BASE64" encoded binary data...>


How does one determine the type of binary the BASE64 decodes into? Surely
some sort of translation into an appropriate file type -- *.gif, *.doc,
etc. -- 
that could be easily recognized and and launched through the appropriate
association of an application would be necessary at some point, right? Based
on the current spec, I just don't see the mechanism in place to do this.

Regards,
Paul Kanieski

paul@crosswind.com