Downloadable ActiveX

Question

Hello friends
I have created an activex dll object and it works fine when registered manually. I want that activex to install in client browser, if already not. I got from searching that, that can be achieved by creating CAB file.
I have created the CAB file and set it the codebase property of the activex object
It asks for downloading, but not getting installed on client browser.
Any one please lead me to the correct way of building the CAB file or where ever the mistake is. Please ...