Hi Folks, I just started exploring Squid proxy and I am clueless of how to use Squid in my setup. Some background on why I am trying to use the Squid proxy: I have a billing application installed in a windows server. This particular billing application uses some proprietary file system, which cannot be customized. I have purchased a Payway API account (Payway API is nothing but a payment processing system for credit cards) for using with the billing application. I just noticed that the Payway API needs a digital certificate to be installed for processing the payments. Unfortunately, my billing application doesn't allow any certificate installation. When I spoke to the billing application development company and Payway, they suggested me to use the Squid proxy to workaround the problem. I was also told that the Squid proxy can provide the client certificate. As I don't have adequate exposure to setting up proxy servers, I have the following questions: 1. Can I install the Squid proxy in the same server where my billing application is located? 2. How do I connect the billing application to the Squid Proxy? Do I need to use some port for this and how am I supposed to connect the Squid Proxy to the Payway API? 3. How do I install the digital certificate provided by Payway in the Squid proxy and what format of digital certificate is to be used - .net or PHP or ASP or something else? 4. How should I configure the Squid proxy or will the default configuration work? 5. Do I need to setup any other process to get the transactions functional? 6. Is there a working example or documentation that I can refer to? Please help me. Thanks, KB.