And why do you think you can force someone to run another program from within a PDF?
Adobe has worked hard to prevent security breaches and to protect the user's privacy. Being able to execute an application outside of their application is a huge breach of security and a big privacy issue. The security issue is an unknown program of unknown trust being silently launched with out the user's permission or knowledge. Even a list of 'safe' programs does not prevent a 'safe' program from being replaced by a an unsafe program.
As gkaiseril was pointing out - scripts executing things "outside" of the application are a security issue. That being said, if you truly have the need then look up "Folder Level Scripting", and Trusted Functions. There is quite a lot of power here, but it usually requires the trusted script items be added to the desktop client to facilitate their being called by the PDF for execution.
Adobe has worked hard to prevent security breaches and to protect the user's privacy. Being able to execute an application outside of their application is a huge breach of security and a big privacy issue. The security issue is an unknown program of unknown trust being silently launched with out the user's permission or knowledge. Even a list of 'safe' programs does not prevent a 'safe' program from being replaced by a an unsafe program.
George Kaiser