How to use JavaScript's ActiveXObject object to detect whether an application is installed_javascript tips

The company's own internal programs can be used normally by calling external protocols, but the external protocol must be matched with a client, so I want to use js to determine whether the client is installed. If not, jump to the download address. , similar to some Thunder and Express download links on the Internet. After checking the method, the implementation method is as follows:

Copy code The code is as follows:

Connect

ActiveXObject is filled with the information registered by the client software in the client's registry. To detect Thunder, fill in ThunderAgent.Agent or ThunderAgent.Agent.1