To launch an application from a web page, a user does not need to be a NASA-level computer genius. Some very attainable knowledge of computer coding is really the only essential. Before you know it, you will be able to construct files on your web page that will open in other applications.

Email Coding

People will tell you that the easiest coding that will open from your web page to another application is the code for email. They are correct. You need to know href=. With just these five strikes of the keyboard you can effectively notify the browser to redirect the user when they click on this code. This will make the browser open the email address into the user's default email application. You also need the code "mailto:". Placing this code after href= will allow the browser to notify the correct email program that the code needs its use.

More Uses for href=

The href= code is not just for emails. It can also be used to launch media files on a web page in a separate application. The coding begins with href= and is followed by the URL of the media. By using this coding formula, the browser will be able to read the file, and it will automatically understand the correct process needed after someone opens it.

Understanding href='s Function

By now you may have realized that the basic function of the href= code is to create a link. This link allows the coder to use almost any file extension. Even if one program does not recognize a file extension, a different program can discern the unknown file and filter it to its correct location. By the power of the href= code, you can create a link, which along with the correct file extensions, will send the wanted file to an outsider's computer and open it automatically.

Source:

eHow: How Do I Launch an Application From a Web Page?