The RC4 encryption article has always been a popular one on our website. In fact, several commercial software packages have utilized the routines in that article over the past few years. However, often when individual developers try to implement those routines, there is a question that crops up, and that question is invariably related to the same thing…
I recently had a need to query a remote server via HTTP and receive rather sensitive information. SSL was not an option because of the ISP’s setup. For these reasons (and a few others), I found myself in need of a good, general-purpose encryption module. For the purposes of prototyping and early testing, I whipped [...]
This article serves as an addendum to my previous article entitled “Calculating the Distance Between Cities“. That article talked about finding the distance between cities as being a useful way to determine, for example, which of a company’s many locations might be closest to a particular customer.
Have you ever been to a company’s website where you can key in your zip code and find which of their stores are closest to you? Or perhaps you’ve seen an employment website where you can narrow your search to return only those jobs which are within a 20 mile radius of your home. Have you ever wondered how that works, and how you could add that type of functionality to your website? This article will show you how to incorporate this type of geographical processing into your website.
Since my last article, several people have asked how to perform benchmark timing within the ASP (VBScript) environment. This article will examine some of the options available for stopwatch-like timing routines. It will also present an easy to incorporate solution that uses no components and allows up to 20 individual stopwatches to be running simultaneously.
In a recent small project, I needed a way to display a series of images in a square area (150×150 pixels). The images in question are uploaded by our customers, and we have no real control over what size or color depth (or even type) they are. While it’s easy to force a resize of [...]
The IMGSZ code presented in my earlier article, Determining Image Properties in ASP, was written in response to my need to be able to fit images proportionally within a given area. My client had asked me to develop a photo gallery application for their site, and the photo gallery was to display photos surrounded by [...]
Welcome to the rebirth of effengud software. effengud software offers tools for web developers (mainly classic ASP and ASP.NET), including a ZIP code distance finder, dealer locator, simple portfolio manager tool, and many relevant and helpful source code snippets.