application/extension detect

[Razorholt]

Hi all,

I tried with PHP but apparently it's not going to be possible, so let's try with Javascript

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Is it possible to detect, from a web page, whether an application has been installed? And is it possible to detect whether a format has been registered with windows/Mac/Linux?

I'm writing a video player that has to be launched from a web page. I need to make sure that the user has the application installed on the machine prior to showing the PLAY button from the page. The player is using its own video extension as well, so when a user is hitting the play button in order to launch any video and the application has not been installed, a popup is asking what program to be used to open the file... No good


Thanks for your help.
- Dan

[Philip M]

"Is it possible to detect, from a web page, whether an application has been installed? And is it possible to detect whether a format has been registered with windows/Mac/Linux?"

No. JavaScript has no ability to read from (or write to) a file.

[Razorholt]

Ok, maybe I should write a plugin for IE, Firefox, etc... Then I'll be able to detect whether it has been installed or not?

[jkd]

Sure, a plugin/extension would have access to that sort of information.