What is Microsoft Silverlight?

I’ve been asked several times about Microsoft Silverlight — what is it and do I need it.

Silverlight is Microsoft’s competition for Adobe Flash Player. It’s designed to play videos and allow interaction with the program.

My initial thoughts were that I didn’t need it. I had no application that areqired it and I did not need yet another video display system on my computer. I already had Windows Media Player which could handle video streaming. I already had JavaScript and ActiveScript (Microsoft’s name for its JavaScript interpreter in Internet Explorer). I already had Adobe Flash Player. Wy did I need Silverlight?

I managed to do without Silverlight all through the first version, which was released in 2008. However, in early 2009, I finally had to install it — it was required for one of my new applications.

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Accessing and Reading Usenet Newsgroups

Reader Greg H. wrote recently to ask for help solving his inability to access the Usenet newsgroups on Verison’s servers.

For those not familiar with Usenet newsgroups, think of them as a mailing list type of system that has been around for well over 25 years. Rather than emails sent to our computers, though, the postings stored in special servers at the Internet Service Providers or at companies that specialize in serving newsgroups (I use GigaNews as my Usenet newsgroups provider).

The postings to the newsgroups are readable by special newsreader software, but some more ubiquitous software like Outlook Express, Opera and Netscape also read newsgroups. They’re also readable via Google Groups, as are other groups that are available only via Google Groups.

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A Look Inside Secunia Software Inspector

I’ve found a great tool that examines my computer to make sure that it has the latest updates of the most common software packages — not all the updates, but the security updates for the versions I’m runninng.

It’s called Secunia Software Inspector, from the Danish security firm Secunia (www.secunia.com).

Secunia offers three versions of its software inspectors:

* Secunia Software Inspector — scan on-line (free)
* Secunia PSI — download version for personal use (free)
* Secunia Network Software Inspector — the full-featured product.

Quoting Secunia’s FAQ:

# What’s the difference between the Secunia PSI and the Secunia Software Inspector (the online version)?

The Secunia Software Inspector identifies about 40 of the most common applications, while the Secunia PSI can identify over 4,200.

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The GreatNews RSS Reader Review

What’s an RSS feed and why should I be interested?

The most frequently updated content sites on the Internet are blogs. In fact, blogs are so easy to update and to maintain that some regular web sites are converting to the blog format. RSS feeds are a way that you can get titles and introductions to the lastest articles — without having to go to the web site to see if there’s something new! The RSS reader that I use is GreatNews, from

Product: GreatNews
Class: RSS Reader
License: Freeware
Version Reviewed: 1.0.0.381 (Beta)
Publisher: Curio Studio, www.curiostudio.com

For some reason, they’re still calling GreatNews a Beta version. Beta is a pre-release status where the author(s) have resolved most of the bugs and they’re allowing others to test the program. I’ve been using GreatNews for about six months and have yet to find a bug!

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Speed of Virtual Memory versus RAM

Subscriber Rolf wrote to ask about the speed differences between hard drive “virtual memory” and RAM memory chips:

Hello Mr. Stockdale,

Since you actively solicit questions in your newsletter I can therefore feel like I’m not imposing too much of your daily schedule to answer a question or two from those of us (like myself) who don’t have much computer savvy. As for me, well, I have more questions than you’d ever have time for; but for now I’ll settle for one question, and I thank you in advance for taking time for a reply. My question is this -

Kindly explain in as simple terms as you can why free or clear space on hard drives can’t act as readily or responsively in lieu of RAM. In other words … the so-called ‘virtual’ RAM. I’ve read in a few separate places that while a computer can use this virtual RAM, it doesn’t do it as efficiently as more available RAM chips, and that it is generally slower. Why can’t this virtual RAM process, then release data as quickly as normal RAM? Thank you. Rolf
+++++++++++> The Irish Viking <+++++++++++++++++++

In four words: mechanical versus electronic speeds.

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Usenet = Internet News = News Groups

Sometimes, you really don’t want to send email to a specific person. You may not want to send it to a specific group of people. You want to communicate to anyone who might be able to answer your question.

There are a number of communities that exist only in the Internet as forums — places where you post a message for others to read and to which they can reply. These forums resemble the Bulletin Board Systems of the early days of modeming, before the Internet was opened to the public.

Another major way to post messages is via a large, distributed bulletin-board system called Usenet. Anyone with access to a newsfeed, which is available from most ISP’s, and a compatible program (Outlook Express does Usenet) can read and post to “Usenet news.”

First, a little lookback at history. Usenet began 1979. Today’s Usenet travels the Internet using the NNTP protocol (Net News Transport Protocol), which was developed in 1986.

I ran into Usenet in 1986, when a friend merged a Usenet newsfeed into his bulletin board system. I read it for a couple of years, and got really active in 1989 when I started my own news server — a bulletin board program called Waffle, running under DOS, then Windows 3, then 3.1, then DRDOS, then Win3.1 running on DRDOS, and finally under OS/2. My 386sx-16 computer got its news and email feeds via dialup (at 2400bps) from someone who dialed up to someone who actually connected directly to the Internet. Wow, that was living.

In the mid-90′s, a website called Deja News began to accumulate all the news into a huge, searchable archive. When Deja News (later called Deja.com) finally folded, they had obtained a significant archive of individual postings. Google bought Deja.com’s Usenet archives and has made the available for easy searching via Google Groups (http://groups.google.com). Google’s Usenet archive has postings dating back to 1981.

Whatever you call it, the news servers that make up Usenet circulates many thousands of messages across the Internet to carry each individual’s posting to all the other news servers. Like a large forum on a website, Usenet (generally just called “News”) has a few different categories for posting of your messages — just a few, 54,284 of them to be exact, or at least that’s the number that news.east.cox.net carried yesterday. Your first step is to download the full list of newsgroups to your newsreader. Your second step is to pick the ones in which you are interested. You “subscribe” to a newsgroup, but that “subscription” is only you telling your program which newsgroups to monitor.

Your ISP may carry all the newsgroups, most of them, some of them, or none of them. If your ISP does not offer newsgroups, there are some third-party news servers that are relatively cheap.

There are also more complete services, like Giganews News Server Access which I use, that offer plans with long retention times for posts and large bandwidth allowances (up to unlimited!). If you’ve ever used your ISP’s usenet servers, you know about missing messages or missing a single segment that is part of a 20 part post.

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