Runtime error 203 is a problem you are probably unfortunate enough to have experienced, if you’re reading this article.  Don’t worry–it probably doesn’t spell immanent disaster for your computer.  At least not yet it doesn’t.

Runtime error 203 may simply stem from a problem with the particular program you’re running.  Nevertheless, it might also say something about your system’s integrity as a whole.  Read below to find out information about its symptoms, causes, and cures.

Runtime Error 203 Symptoms

• You receive a message stating, “Your computer is low on memory, save your documents and close all programs.” If you don’t close everything up, it’s very likely that you’ll get an error message and your computer will slow down considerably.  (Your computer was probably already running slower than usual.)
• Your computer slows down right before you receive the error message. This is typical of many runtime errors.  This is not unusual, so it doesn’t mean that your problem necessarily originates from malicious software like viruses (although they could be a factor).
• You get the runtime error 203 message, then whatever software you were running at the time shuts down. This can be highly frustrating.  When the problem is this or the above, however, you may get off easy because it’s probably just a problem with the software.  However, you may also have a problem with your registry.
• Your computer displays the “Runtime Error 203″ message, then crashes. This is a great big red flag out of nowhere.  If this happens, then it’s seriously time to think about uninstalling the program, then running anti-virus software and a registry scan.

Where do these memory problems comes from?

Runtime error 203 is typically a memory-related problem and can come from a variety of sources.

• You have a copy of the test or beta version of certain software.  You may have gotten the program by mistake, or downloaded it from a torrent site.  Unless you bought the program directly from a merchant, there’s a good chance you have a beta version.  There’s also a good chance that:
  • You have spyware on your computer.  This error usually comes from too little memory being available to complete the current tasks on your computer.  You’ll do yourself a favor if you run a check for viruses and spyware on your computer.

• You have registry errors.  Most computers do.  At the very least, a large amount of files is left over from software updates and bad uninstalls.

If you’ve got (or have ever had) spyware or viruses on your computer, then they have probably left behind files in the registry that may be slowing your computer down.  Run a free scan for runtime error 203 and keep your registry in shape.

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If you have shell.dll missing from your computer, you may be experiencing a number of problems.  The least of these will be an “illegal operation” dialog box that opens up when you try to view a web page or open your favorite program.

What causes shell.dll to go missing?

There can be many reasons for this file to disappear.

The least malicious of them may be that you accidentally deleted the file when you were cleaning out your registry.  This is only one reason you should never try to clean your registry “by hand” (due to the massive potential for error, even many PC technicians won’t touch this job!).

The program may have disappeared during a bad install or uninstall of a program on your computer.  This kind of error is simply caused by bad programming.

A bad install may overwrite the file with another (different) file that, unfortunately, has the same name.  On the other hand, a program could have thought the file was one of its own and deleted it as part of the uninstall process.

The file may also have disappeared if a malicious program such as spyware or a Trojan horse damaged the registry.  Unfortunately, the kinds of programs that remove malicious software, often do not fix the damage that bad software can make to the registry.

One thing you shouldn’t do to replace a missing shell.dll file.

There is one tempting thing you should definitely not do to replace shell.dll (or any other .dll file): You should not download a free replacement from a free download site!  Why?

For one thing, you can never be sure that you are getting the most recently updated version.  Another thing, many of these “free download” sites don’t do a very good job of checking the files that are uploaded to them.  These kinds of sites can be rife with just the kinds of spyware, adware, and viruses that will cause .dll errors in the first place!

You should always go to the source when you need to replace a missing file.  Shell.dll controls many of the API functions in Windows, so it’s best to re-download the file straight from Microsoft.

3 ways to protect yourself from missing .dll files in the future.

Always get the latest updates, patches, and service packs from Microsoft as they become available.  Check for them once a week at the very least.  You can even set your computer to automatically search for these updates in the “Windows Update” section of Control Panel.

Regularly scan your computer with anti-virus and anti-spyware programs.  There are some good free programs available like AVG, Malwarebytes, and Spybot: Search and Destroy.  Download these programs and use them!

Scan your computer for registry errors.  Unfortunately, there are not any free registry cleaners worth recommending at this time (”freeware” versions will sometimes delete the wrong files!).  Legitimate registry cleaners will however offer a free scan up-front so that you can see if you really need to purchase them in order to fix shell.dll errors.

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We want you to get the most from your computer, to optimize computer performance to the level that you won’t want to go back to living with the slow-running, average machine that you’re working with now.  So here are some tips to optimize computer performance and get you the speed you need.

First Steps toward Computer Optimization

The very first thing we recommend is to make sure that your anti-malware programs are up-to-date.  This can include virus protection, spyware protection, and other security threat prevention programs.  Depending on what you use your computer for, you may need to consider a firewall program.

Whatever your protection, make sure the updates do not expire, because new viruses and spyware are being created all the time, and old software simply will not find the new bugs.

Next, get into a routine of backing up your files regularly.  It doesn’t matter what system you pick (manual, an internet storage company, a software program).  What matters is that you do it.  Not only will this protect you from a loss of data, but it should get you deleting obsolete files and programs as you notice them, which will free up space on your computer, boosting speed and performance.

Clean House to Boost Performance

Your PC comes with various tools built in that will increase efficiency and optimize performance.  One such tool is the Disk Defragmenter.  Fragmentation is the name given to the process of breaking down files into chunks that fit the blocks of available space on your hard drive.  It takes a computer longer to access files that have been fragmented because the disk has to spin to several places to retrieve one file.

Running the Disk Defragmenter will put the files back together and leave the empty space all together to prevent further file fragmentation. (Run a search of your computer to find this tool, since its location varies depending on what version of Windows you’re running.)  Of course, as more programs are deleted, space frees up in inconvenient places again, so this is something to do monthly.

The Check Disk program is another tool provided with your PC.  This one repairs errors on your hard disk that may be caused by improper shut downs or program crashes.  These errors can lead to further errors.  So, in order to keep your computer performing optimally, you’ll need to fix the errors as they come.  Microsoft recommends doing this once a week.

Realize Your Need for Speed

Finally, to really boost speed, run a registry cleaner to optimize computer performance and target the errors on your Windows registry.  These errors can be responsible for a host of error messages and symptoms.   With a clean registry, your computer will run faster than you can remember!

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