OCX used in browser is great evil. Web standards are designed the way to isolate a Web application from local systems, and ActiveX components which can be used via Javascript on IE and some add-ons for some other browsers open a great security hole. Actually, security savvy users will never visit your site if they learn that you use such technique. However, they will rather switch off ActiveX use or use other, safer browsers…
…Such as Chrome. Actually, Chrome can use them (please see
https://chrome.google.com/webstore/detail/activex-for-chrome/lgllffgicojgllpmdbemgglaponefajn?hl=en[
^]), but I would recommend you to avoid using this possibility.
—SA