I created a c# class library. I need to to call a method in the library file javascript using the dll.The javascript will be embedded in a web page already created. The dll will be on the client machine. Can someone help?

Ps:the method returns a boolean

More details: Actually the website is a virtual web conferencing software in which each one has a particualr avatar. I have to detect whether a particular software(needed for making video calls) is installed in the user's system.If it is installed i have to indicate that by showing some special symbols on his avatar.I made a c# class library which returns true if the software is installed in the system.Now i have to embed this in the virtual conferencing web software

I am new to c# and javascript programming!