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Microsoft Security Hole In Windows Vista and XP

Wednesday, February 27th, 2008

  Microsoft is currently addressing newly discovered holes in the security of their Vista and xp operating systems. Most importantly a security vulnerability in Windows Vista and XP that could expose a computer to an early-season bite while you are connected to the Internet.

How it works is a hacker can broadcast rogue TCP/IP packets to any range of IP addresses. The rogue packets have the ability to circumvent Windows’ security and hijack a computer turning that computer into part of a Bot net. Bot nets are designed for spamming as well as launching self replicating worms and even worse ICMP attacks which can shut down servers.

Currently there have been no attacks using this vulnerability. Microsoft scrambled to make available a patch to secure this hole and it is currently available using the link below. The patch may already be applied to your system if automatic updates are turned on.

Click Here for The Microsoft Security Patch

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Quicktime Issues with Qualcomm Purvoice Codec

Thursday, February 21st, 2008

I recently experienced an issue with QuickTime playing sound in my self created movies. I reviewed all the data concerning my videos to see if I could identify something unique about the videos or the player. After a few hours I noticed all of the movies that did not have sound were encoded with the Qualcomm Purevoice codec.

I researched intensely on QuickTimes website with no luck. I even spent fourty minutes on the phone with a QuickTime support technician only to have him tell me I would have to go and find a copy of the codec (which is no longer supported by the company) and install it. He stated specifically that it was not an issue with QuickTime. Despite me arguing about the fact that it worked previously he would not be swayed.

I decided to search deeper. In reviewing the QuickTime application logs I noticed I had received an upgrade recently. Shazaaaam! Maybe I had a direction to go with. Now I just had to figure out what my previous version was.

I discovered that my previous version of QuickTime was 7.1.6 so of course I went on an intensive search to find an installer. Once I located and installed the older version of QuickTime and after restarting of course; I once again had sound in my videos.

After curing my issue I contacted Apple again. I used my ticket number to contact the same technician and told him I had discovered the issue. As I explained to him that apparently either the codec or the ability of QuickTime to understand this codec had been removed from the QuickTime version 7.3 that I had installed. I told him if he would like I would be more than happy to tell him a work around for it, that I was sure with all of the forum questions on this same issue he would probably make many Apple customers happy.

This part just floored me, believe it or not I was told if I would like to go post it in there forums I could. What a crock (I thought) he wasn’t willing to help out his own customers by posting the information in a TID. It took me a few seconds to calm down (which I did), I told him why would I volunteer my time for a job that he is supposed to do? So I calmly explained that I’m sure this information would generate traffic on a website so I would just put it on one of our company websites.

Of course none of this even phased him. Apple is always talking about how there market share is increasing, maybe with all that new money they can hire some courteous technicians who actually desire to do their job by helping people.

Bottom line if you have any videos that do not play sound after upgrading your version of QuickTime, you might check to see what codec was used for the audio. If the audio was encoded with the Qualcomm Pure voice codec then a simple work around is to install QuickTime version 7.1.6.

I am unsure if the new 7.4 versions have a fix for this issue, but from the response I got from Apples’ technician it wasn’t like they were going to change anything. With this in mind I have not tried the latest versions to see if the codec is played in them. I use this codec all the time for older training videos and I am unwilling to change from a version which I know works to a version that may not.

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Vista memory utility

Monday, July 30th, 2007

Windows Vista has the ability built in to check for memory problems. Issues with RAM can cause your system to become unstable, lose data and fail randomly. Checking the memory should be the first step in any diagnostic process.

To access the Windows Memory Diagnostic Tool, you can go to desktop search box and type memory. You may also access them by using the Admin Tools area of the control panel or by booting off of the Vista DVD and using the Recovery Environment. 

If using the utility from inside Windows you will be prompted with the option to restart your computer to begin the test or begin the test the next time you boot your PC. When your PC restarts, the diagnostic tool will begin and present you with a few test options: Basic, Standard and Extended. The Standard test is selected by default. Simply designate which option you wish to run.

These tests can take a while to complete so you may want to find something else to do with your time. The computer will report the results the next time you login. If you have a bad memory stick you should replace or remove the faulty module immediately. Memory errors can impact your Windows installation and/or performance.

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Selecting a Proper Password

Tuesday, July 10th, 2007

How secure are the user names and passwords you have selected? In this article we will outline a few things to consider when selecting passwords for computer or online accounts.

Here are a few guidlines to consider.

Do NOT use the same password for multiple accounts. Ideally you should not use the same user name or password for any account.

Use long passwords which employ at least eight characters with a combination of numbers as well as lower and uppercase letters.

Often hackers use utilities designed to randomly generate letters and numbers. These utilities try different combinations of letters and numbers and will attempt to randomly guess passwords in multiple attempts over a selected time period until the password and user name are found.

Do not use common names such as titles, well known names or nicknames. This includes the names of your children, pets or the model of your vehicle.

The biggest mistake I see is people using default passwords such as “password”. If your account has a default password change it immediately.

When selecting numbers to use do not select birthdays, social security numbers or any easy to remember number that may be associated to you.

The best practice would be to randomly generate unique user name and passwords. There are many programs available which can generate and store user names and passwords, and then store this information in a password protected database. Once again if you use these types of software be sure to make your initial password at least eight characters with upper and lower case lettering and include numbers.

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Back To Work

Monday, July 9th, 2007

Does anyone else find it hard to pick up work after vacationing? Having completed a weeks worth of vacation I am back to the grind….well….sort of.

I am using this day to read up on new stories and technologies for new content on the site. Please bare with me while I compose myself and get my head out of the vacation cloud. Of course this is not easily done…

As you can see from the last post we are now taking posted questions to better serve our users. As well I would like to add if there is a new technology or concern you would like for me to address please post a comment to this blog. I would be happy to research and address topics for our users.

After all….It is you the end user for which we create the content.

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Need Computer Tech Support?

Wednesday, July 4th, 2007

In the old days PC911 had a forum where you could post questions and answers to. Now that we have this fancy new fangled blog technology I would like to ask you to post your tech support questions here and we will address them.

A lot of people have asked for the forums back but we would prefer to use this blog as a means to help you with your computer problems. Post your question as a comment below and we will help you. It’s that simple.

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