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Terry's Computer Tips Newsletter
September 27, 2009

Terry's Computer Tips Newsletter
http://www.terryscomputertips.com
A computer tips newsletter for users of PC's.

Volume 5, Number 16 — Sunday, September 27, 2009

IN THIS ON-LINE ISSUE:

   1.   Unable to Open .WK3 Files in Excel
   2.   The Lighter Side of Technology
   3.   Router Encryption — Increasing Wireless Security
   4.   Mouse Hesitation — Mouse Freezing
   5.   My Computer Security Software Recommendations
   6.   Recommend my Terry's Computer Tips Newsletter to Your Friends

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Welcome to the on-line edition of my Terry's Computer Tips newsletter. Its articles are not in the email issue — and the email articles aren't in the online issue — subscribe to my email newsletter so you can read both.

 

1.  Unable to Open .WK3 Files in Excel

Subscriber Len Cartwright wrote from the U.K. to ask for some unusual help:

Hi Terry, I'm running XP with all updates. When I try to open an old Lotus *.WK3 file I get an error message "You are attempting to open a file type the is blocked by your registry policy setting". I suspect that "your" is more like Microsoft, but where, how do I fix it and others and why should it now be blocked, it was ok a long time ago? Regards Len

I wrote back to Len to ask for more information — he had left out some critical information for me to understand what was happening.

I asked him:

1) what program are you trying to use to open the file?
2) what version?
3) How are you trying to open it? From within a program using File/Open, or by double-clicking on the file, or what?

If you're double-clicking, open the program and then use File/Open.

If you're trying to open with Excel, make sure you have the .wk3 file filter loaded so it knows how to open the file.

Len wrote back with some answers:

Hi Terry, Thanks for the rapid reply.
I'm trying to open the WK3 file in Excel 2003. I've tried using file open and also using explore double click and "choose a program," without success.

The only thing I've not tried is loading the WK3 filter. Would please enlighten me on the technique.

Is this a solution for other file types also?

Regards

Len

Microsoft has a bad habit of not loading all the files that allow its programs to properly read other file formats. [If they make it too easy, people might use those other programs more...]

These files that interpret the other file formats are known as file fllters. They should be available on the Office 2003 cdrom. It's been a long time, so I don't recall how to install the filters, but I think you'll get the option to install additional features if you insert the Office CDROM. I normally pick the "custom" installation so that I can install .

The easiest and cleanest way to tell if the filter has been installed, or not, is via the File/Open route. If you can select the option to display files of filetype .wk3 in that dialog box, it's loaded. If you can only see them when you select "All files," then it's not loaded. Len wrote back to report success!

Hi Terry,

You were correct in thinking the file filter was probably missing, so I down-loaded it from http://www.microsoft.com/downloads/details.aspx?FamilyID=CF196DF0-70E5-4595-8A98-370278F40C57&displaylang=en

This did indeed put the Lotus family and others, in the drop-down list. I did a re-start, to have the best chance of everything working, went into Excel, selected the filter and clicked on the *.WK3 file. Sadly I still had the same message from Windows complaining about my registry security policy. Is it possible that the registry still needs to be tweaked in some way?

Regards

Len

Microsoft offers several workarounds and solutions to the registry security warning, including a link to another Knowledge Base (KB) article explaining why the access is blocked and how you can unblock it, if you insist on exposing yourself to the risk. Check them out at http://support.microsoft.com/kb/941636.

 

 

2.  The Lighter Side of Technology

This week's technology cartoon at Terry's Computer Tips!

 

 

   Acronis True Image 2010

  
   Acronis True Image Home 2010
Make Your Own Restore DVD's and Restore Image files
with your programs, your configurations and your data

to another hard drive, to an external hard drive, to another
computer across your home network, or directly to DVD's.
Restore entire drives or specific files and folders.

Discounted Upgrade from Earlier Versions


 

3.  Router Encryption — Increasing Wireless Security

I answered a question this week from someone who was using WEP (the so-called "Wired Equivalent Privacy") encryption on their wireless network. They were considering changing to WPA (Wi-Fi Protected Access). The real answer is that they need to change to the second generation of WPA — WPA2.

The biggest question in their mind was whether they'd have to change the wireless passphrases on all their computers (quick answer: yes).

Why change? WEP is old, way, way old in computer terms. When it was first released, it was effective.

But, by 2004, second-generation WEP-cracking tools were widely available. In an article, SmallNetBuilder reports on a 2005 demonstration by a team of FBI agents who were able to crack a 128 bit WEP key in about three minutes.

WPA replaced WEP as the choice for encryption. Then, it fell prey to cracking techniques, too.

Even more worrisome, increased computing power made the tools available to anyone who really wanted to crack a neighbor's network. Now, we don't have to worry about a bad guy, but also the neighbor's kid...

WPA2 subsequently replaced WPA, and is still the best we've got for home use.

If you're running Windows Vista or Windows XP with Service Pack 3, you've got WPA2 drivers already installed in Windows. You just have to select it on your router and in Windows.

My Dell Inspiron refers to WPA Enterprise and WPA Personal PSK (pre-shared key). It does not make reference to WPA2, although that's what it's using — it has to be WPA2, since that's what my router is doing.

My router (Linksys WRT54G) offers WPA Enterprise, WPA Personal, WPA2 Enterprise and WPA2 Personal. For WPA2 Personal, it offers AES encryption and TKIP+AES, which is a better choice.

Is WPA2 only for Windows? No way — even my old 1st generation iPhone did WPA2, which meant it could connect and work with my wireless network.

Related articles:

 

4.  Mouse Hesitation — Mouse Freezing

Reader Chet Martin wrote to ask about a problem he was having:

Terry,

Hello and thanks for your great site.

I am enjoying using the Anti virus Program, but now I have another problem.

My computer, the mouse keeps freezing. I have to restart the computer to fix it, seems like every time. I have new mouse and my computer is fairly new. Two months old. Do you have any idea what it might be? I downloaded the software for the mouse and all else looks good, but still........ Thanks Chester Ross Martin

Chet's problem is one of the aggravations that go with wireless mice. It also applies to wireless keyboards.

When the batteries are running out of power, they will slowly charge the capacitors in the device.

Then, when you move the mouse or click the button, the capacitor may not have enough charge as it needs.

That's why you can often leave the mouse alone for a bit, and then move it successfully again, or click the mouse button. But, if you try to keep moving it or keep clicking (or double-clicking), the mouse just has not gotten enough power fast enough.

All it takes at that point are fresh batteries.

Put new batteries in your mouse and you'll find that it works great again.

In my case, the mouse that normally runs down the quickest is the one for my home theater PC. The mouse hesitates. The clicks don't always work.

I thought the mouse was just getting old or worn out. It took way too long for me to realize that the problem was just the battery.

 

 

5.  My Computer Security Software Recommendations

Acronis True Image 2010

I review my security software recommendations and update them for each weekly newsletter issue, if I think they need to change.

My Philosophy: Many people want to pick their most economical solution and prefer an all-in-one anti-virus, anti-spyware and firewall solution. In concept, that's a great idea. In actual practice, I don' think that this type of package is likely to be the best in all the protection categories you need.

Other people want to pick the best of each type program. I'm one of the these folks.

My choice of software that I am willing to recommend is driven by my search for software for me to use. I only recommend programs that I like and that I use. I will sometimes suggest alternatives to my recommendations, but I clearly note if I no longer use them.

Anti-Virus

I'm often asked about several other popular anti-virus or anti-virus combination packages. Yes, I realize that they are not in my recommendation list. "Enough said..."

From 2003 through mid-2008, my personal choice was ESET's small, fast NOD32 anti-virus program, which offers a FREE 30-day evaluation license. I still consider NOD32 to be one of the best in anti-virus protection — and it continues to get recognition and awards. Unlike some of its competitors, ESET offers multiple-year licenses also, and includes program updates in the multiple-year license.

However, I've changed from my long-time choices NOD32 (antivirus) and Sunbelt's CounterSpy (antispyware) to Sunbelt's new VIPRE Antivirus + Antispyware.

I've found that VIPRE puts even less load on my computer than the speedy combination of NOD32 and CounterSpy. I've also been impressed with the way its "deep scan" has found and eliminated risks that were stored in zip files, which is one of the latest malware email tricks. Sunbelt Software offers multi-year licenses and home site licenses on its software, both of which include program updates as well as signature updates.

I'm often asked for alternatives to the programs that I recommend, especially by people who want to buy one package (a "suite") to do everything.

As a result, I tried a couple security suites in the last few months to pick a suite to recommend. ESET Smart Security 4 is my recommended suite alternative. Smart Security 4 has gotten great ratings and includes antivirus and antispyware, both from their current NOD32 v4 version, and antispam and firewall. I no longer use it and have returned to Sunbelt's VIPRE, but for a suite choice, that's what I would use.

Tech Tip
Many antivirus programs will offer you an anti-virus signature subscription renewal when your subscription renews. I strongly recommend against this option — buy the full program or make sure you get program updates with the subscription renewal. Both NOD32 and VIPRE purchases include both program updates/upgrades AND antivirus signature updates.

Vendors routinely improve the capabilities and speed of the programs, too. If you update only the signatures, you miss any program improvements.

Related articles:

Firewall Software

While the Windows XP firewall is much better than no firewall at all, don't count on the Windows XP firewall to meet your needs.

You need a two-way firewall, which the Windows XP firewall is not!. Microsoft woke up and supplied a two-way firewall with Windows Vista.

The Windows XP firewall does not control outbound communications originating from your computer — and you should want to have control if adware/trojans/spyware or even commercial products want to talk to the Internet. Whether they are calling home or spewing spam, you want to be able to control your computer.

Do you want Windows Media Player to call home every time you play something? It does! Do you use the Search function in Windows Explorer to find things on your hard drive? Did you know that every time you search, Windows Explorer talks to Microsoft?

I didn't know that when I ran ZoneAlarm, but the Sunbelt Personal Firewall flags that to me, and I can stop it or allow it to happen. Many other programs try to call home when you run them, too.

I recommend my choice for a firewall program, which is Sunbelt Personal Firewall.

You can try the full-featured "paid version" of Sunbelt Personal Firewall free for 30 days — after that, you can register it or, if you're using it on a home non-business computer, you can let it revert to the free, lesser-function license.
Tip: Be sure to read my review of SPF for the settings I recommend.

Sunbelt Personal Firewall is regularly $19.95 (with discounts for multiple computers and/or multiple years!) for a non-expiring license for the program and includes one year of their updates subscription.

Related articles:

Anti-Spyware / Anti-Adware Software

CounterSpy, from Sunbelt Software, has received many kudos from the computer press for its always-running and periodic full system scans. It has been my personal choice for my PC's and my family's PC's.

Sunbelt's CounterSpy v2.5, both improved CounterSpy's performance against malware and reduced its impact on system resources and responsiveness when its scanning.

Sunbelt continues to release updated program versions — the current version is v3.1 — and there's an even newer version about to be released. Nicely, Sunbelt do NOT install the updated programs automatically. You have to use the Update process in the program, which means that you'll know that something significant has changed.

Now, I've changed from my long-time programs NOD32 (antivirus) and CounterSpy (antispyware) to Sunbelt's new VIPRE Antivirus + Antispyware.

I've found that VIPRE puts even less load on my computer than the speedy combination of NOD32 and CounterSpy. My computer seems to have much more pep and power than it had previously. I've also been impressed with the way its "deep scan" has found and eliminated risks that were stored in zip files, which is one of the latest malware email tricks.

Related articles:

Anti-spam Software

In today's Internet world, the question is not "if" you will get spam, but "how much will you get?"

I use and recommend POPFile as my first choice for handling spam. POPFile sits on your computer, between your email program and your ISP mailbox, and handles emial as it downloads.

POPFile uses a different approach to handle spam than some other programs do — it does nothing to reduce spam. It is designed as an email classification tool — you train it to recognize spam and any other type of email that you want to classify. These classifications can help you sort your emails into appropriate folders in your email program.

Sunbelt Software, who makes the anti-spyware program CounterSpy (which I use and recommend) and the firewall that I use and recommend (Sunbelt Personal Firewall) also has a well-regarded, award-winning anti-spam program called iHateSpam for Outlook and Outlook Express. Since I don't use Outlook or Outlook Express for email, I haven't tried iHateSpam.

Mailwasher Pro would be my first choice to handle spam before it ever gets into your computer's Inbox. Mailwasher Pro uses on-line Realtime Black Lists mail servers sending spam recently, "training" by you of what you think is spam, and your own "friends" and "blacklist" lists. Note: I found that PopFile generally meets my needs and stopped using Mailwasher Pro, even though PopFile works AFTER the emails have been downloaded. If I used a dialup connection, I would be more interested in Mailwasher Pro.

Mailwasher Pro can even bounce spam messages, as if your email address was not valid, although the usefulness and appropriateness of this is questionable. There is a free version called "Mailwasher," but it omits the functions that I consider critical for this purpose -- such as safely previewing the emails safely before they ever get to your email inbox.

Related articles:

Backup Software

When we think of security software, we usually think of antivirus, firewall, antispyware and antispam software. But, what other kind of software is security software? Backup software, of course.

We need to make backup copies of our important data. That data may be financial, such as your checkbook in Quicken, or your spreadsheet tracking your investmants. Or, it may be personal, non-financial data such as digital family photos.

What if your hard drive won't start one day? What will you lose? What if your computer is stolen (let's ignore, for now, whether you should encrypt data on your hard drive to protect it from others — let's just think about the inconvenience and loss to us!)?

There are two basic types of backups you should do.

You need to regularly back up your individual data files to another computer, to an external hard drive, or even to an online repository (but realize, if you have to rebuild the data on your computer, it may have to be downloaded for days and days). An external hard drive is the best choice if you don't have a home network where you could copy to another computer.

If you have a home network, use Karen's Replicator (free for personal, non-business use) to back up the files that change. I have it scheduled to copy my data files every evening from my notebook to another computer at my home. You should also get an external hard drive (or two, so you can alternate them) and make occasional backup copies to it. Preferably store it at a relative's house or your safe deposit box.

If you don't have a home network, get an external hard drive (or two, so you can alternate them) and make regularly scheduled backup copies to it. Use Karen's Replicator (free for personal, non-business use) to back up the files that change to your external drive. Preferably, store one external drive at a relative's house or your safe deposit box, so that if the worst happens, you haven't lost irreplaceable photos and other information.

The other type of backup is an image backup. This gives the ultimate in quick restore capability. Just plug in the external drive, boot the cdrom, and restore the image back to your hard drive. I use Acronis True Image Home 2009 to make backups across my network every three days. Once a month, I make a full backup image. Every three days, it makes an incremental backup — copying only those files that have changed.

Acronis True Image Home 2009 (and later) allow you to recover individual files and folders from the image files, so you don't have to restore everything. The nice thing about making my backup across the network is that I can restore individual files across the network from those images. Sometimes that's the easiest thing to do.

Why Replicator and Acronis True Image Home, if we can restore individual files from both? Replicator will always have the latest version it backed up — but not any earlier ones. With Acronis True Image, we can have multiple versions of the files to choose among. We can restore one that's months old, if we like, and not just the latest version.

Cable/DSL Router

If you have a cable modem or a DSL modem, you need to have another layer of inexpensive protection between you and the Internet. A cable/DSL router isolates your computer from direct connection to the Internet. Your computer can easily request your email, web pages, etc. through the router. The responses come back to the router and are smoothly routed to your computer. But, someone on the Internet side of the router can not initiate a connection to your computer — they can only respond to your request.

Even if you only have one computer to connect to your cable or DSL modem, I recommend that you purchase and use a cable/DSL router because of the protection it can give you against attempts to attack through some flaws in Windows itself.

A router isolates your local network, whether it is only one computer or several, from the Internet by actually making it a separate network. The router gets the "public" IP address and handles all your outbound communications and the responses to them. But, it blocks computers on the Internet side from being able to initiate communications with your computer! This will prevent you from falling prey to many worms that try to attack security holes in Windows itself.

For a wireless router, I still recommend the Linksys WRT54G wireless router. When the "n" specifications become final, I'll recommend an "n" router. Even though the specs have been through so many drafts, I still remember the fiasco of the dialup modems built on the draft specifications — and then the final specs were not quite compatible...

If you don't want wireless, I recommend the Linksys BEFSR41 wired router, which I also use. Either way, based on my experience, I recommend Linksys routers for price, reliability and Linksys' habit of releasing updated firmware for their products..

Tech Tip
By the way, if you get tempted by the new "802.11n" routers, please pay close attention. So far, the 802.11n specification has not been approved and finalized. IEEE is currently working on Draft 9 of the standard. The final standard is expected to be approved in January 2010.

If you buy one, you may be locked into a specific vendor's implementation of a draft of a standard that never got approved. I recommend choosing 802.11g for now, or recognizing and accepting that you're purchasing a model based on a work-in-progress, and that your router and computer's wireless card may not meet the final standard.

See these related articles:

6.  Recommend my Terry's Computer Tips Newsletter to Your Friends

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Volume 5, Number 16 — Sunday, September 27, 2009

Copyright © 2009 Terry A. Stockdale.  All rights reserved.


 

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