ARTICLE: Microsoft Outlook Memory Usage

I'm a bit paranoid about what runs in my computers. So as a force of habbit, I would sometimes fire up TCP Viewer (from sysinternals) or the native task manager. Believe me, paranoia (not too much of it) has its own set of advantages. From task manager you can see what's running on your computer.. and more.

One of the many advantages it brought is this observation I recently had. While trying to monitor memory usage of an application for a client, I compared data using Hobbit (now known as Xymon) client on the host running Windows XP. And found a bit of disparity between data points. The data points I'm talking about here had no relation to the application I was monitoring. It was the memory usage of Microsoft Outlook that the client was running, aside from the application itself. The memory consumption from Microsoft Outlook jumped from 4MB to 16MB five minutes later (hobbit's data points are sent to the server every 5 minutes).

That experience and the curiosity it brought got me to dig deeper.. But no sooner after I left the client, I forgot all about it. So later when I got home, I sat in front of my notebook and launched the task manager, that brought me back to the experience earlier in the day. I ran Microsoft Outlook next (I'm using Microsoft Outlook 2007) to monitor its usage. And what better tool to use for this than the task manager. I do not need any more monitoring as the task manager offers that data in real time!

Right out, task manager presented me with information that Outlook consumes about 20MB of memory. The personal folders (.pst) file associated to it is 27.2MB in size. The memory consumption of Outlook is presented in the screenshot below.



I was intending to replicate the scenario I witnessed in my client's office but I had no idea what was being done on the monitored host. And even more puzzling, how do I replicate the sudden memory drop/increase that I saw Outlook do.

So I went on launching typical office applications, browsed the web, and opened files.. anything to replicate the observation earlier. But Outlook memory consumption remained pretty much the same.. Until at last I hit paydirt -- I minimized the Outlook window and boom.. memory drop!



I restored the window and saw the memory consumption return. Minimized and replicated the previous observations. This must be how I saw it from my client's office.

So then, if you are running low on memory and you are running Outlook it would be best to minimize it to free up more memory. Or better yet, if Outlook is "idle" or running in the background, minimize it to make more memory available to the current application in focus.

I hope that by relating this little experience of mine you can put it to good use.

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HOW-TO: Microsoft DirectShow Vulnerability Exploit

Microsoft says hackers are targeting a security flaw in the DirectX feature of Windows. According to Microsoft, attackers are using malicious QuickTime videos to exploit the bug. From the security advisory:
Microsoft is investigating new public reports of a new vulnerability in Microsoft DirectX. The vulnerability could allow remote code execution if user opened a specially crafted QuickTime media file. Microsoft is aware of limited, active attacks that use this exploit code. While our investigation is ongoing, our investigation so far has shown that Windows 2000 Service Pack 4, Windows XP, and Windows Server 2003 are vulnerable; all versions of Windows Vista and Windows Server 2008 are not vulnerable. Microsoft has activated its Software Security Incident Response Process (SSIRP) and is continuing to investigate this issue.


According to security bulletin KB971778, one of the workarounds is to delete the registry subkey: HKEY_CLASSES_ROOT\CLSID\{D51BD5A0-7548-11CF-A520-0080C77EF58A}.

The quickest copy-n-paste procedure is to open a command terminal (Start --> Run.. --> "cmd"). Copy and paste the commands below..

First backup the registry subkey before deleting it (execute this in the command terminal)..
reg export HKEY_CLASSES_ROOT\CLSID\{D51BD5A0-7548-11CF-A520-0080C77EF58A} QuickTime.reg

It follows that the newly created file QuickTime.reg is the backup. Then upon successful backup, delete the subkey (execute this in the command terminal as well)..
reg delete HKEY_CLASSES_ROOT\CLSID\{D51BD5A0-7548-11CF-A520-0080C77EF58A}

Confirm deletion when prompted.



Although this procedure will not correct the underlying vulnerability, it is a workaround to mitigate the threat and block the potential attack.

Having a backup of the registry subkey will make it easier to revert the change when a permanent patch is available.

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Everybody, Somebody, Anybody, and Nobody

This is a little story about four people named Everybody, Somebody, Anybody, and Nobody.

There was an important job to be done and Everybody was sure that Somebody would do it.

Anybody could have done it, but Nobody did it.

Somebody got angry about that because it was Everybody's job.

Everybody thought that Anybody could do it, but Nobody realized that Everybody wouldn't do it.

It ended up that Everybody blamed Somebody when Nobody did what Anybody could have done.

(The above is a short story I accidentally found in an archive of files from long ago. Credits to the original author.)

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HOW-TO: Post YM Status Icon in Forums

I used to trade (mostly sell) stuff online and in forums. And for practicality sake, it is important for me to be reachable most of the time. Giving up your email address online has its pros and cons but face it, you would think twice about giving away your mobile number.

So is there another alternative to getting reached and notifying the buyer you are reachable? YM has been one of the popular chat systems since its inception and it is widely used. And I have been intrigued by forum posts with icons showing the user is online. And I assume you would like to put your own online or offline status just as I am.

This is really simple to do. To get straight to the point, below is the code. On some forums the syntax may be different but the URL is pretty much the same.

[img]http://opi.yahoo.com/online?u=YOUR_YM_ID_HERE&m=g&t=14[/img]


Replace the string "YOUR_YM_ID_HERE" with your Yahoo ID and it will show your YM status as an icon or image on your post.

The images should look like the ones below. First offline:



... then online.



There you go, YM status as icon on your post.

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HOW-TO: dwwin.exe - DLL Initialization Failed

Have you ever noticed this error message pop-up each time you shutdown or reboot your computer? Although shutdown proceeds and the message seems harmless (and in fact it does not give a clue of anything wrong), it is still a nuisance to get such especially on shutdown sequence.

This article will discuss the weird solution to such error message.. I say "weird" because the error message does not give a clue and the solution to it seems unrelated at all. You will get to know it soon. Read on..

I could not capture a screenshot of the pop-up message but since you are here, you might have searched for this cos you might have encountered it and got curious. Don't worry, when I first encountered it we probably shared the same puzzled expression and curiousity.

However, I can share the event message with you. If you take a look at the application event logs of your machine you should be able to see something similar (see screenshot below) -- Event ID: 26. Completely clueless, I went to search in the internet for a possible solution.. And unfortunately, did not find any.



However, a friend has already encountered the same and with his permission I am posting the solution here.

Believe it or not, the error has something to do with Adobe Acrobat Reader. So launch the reader and go to:
"Edit"
--> "Preferences"
----> "Internet"
(untick "Display PDF in browser")




Execution will cause Acrobat Reader to repair itself and the pop-up message will no longer haunt you when executing a reboot or shutdown.

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