Microsoft DirectX FAQs

Q: What is DirectX? Do you have a definition?
A: Microsoft® DirectX® is a group of technologies designed to make Windows-based computers an ideal platform for running and displaying applications rich in multimedia elements, such as full-color graphics, video, 3-D animation, and surround sound.
Q: What is the latest version of DirectX
A: The latest released version is currently DirectX 9.0b for users of Microsoft Windows 98, 98Se, Me, 2000, XP, and Server 2003. The latest version of DirectX for Windows 95 users is 8.0a.

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Q: What is new in DirectX 9?
A: “There are many new and exciting features in all of the DirectX components.
The SDK has added a new member to its core technology called Managed DirectX, a DirectPlay port for the PocketPC, a High Level Shader Language for D3DX, and Windows XP parity on downlevel operating systems for DirectShow and the DirectX audio APIs.
DirectShow also has a new Video Mixing Renderer (VMR9) which uses D3D9 surfaces and always renders video through the 3D pipeline, along with new and exciting samples.
The generic Windows Media Format SDK stub library (wmstub.lib) available in previous beta releases has been removed. DirectShow samples using this stub library have been reverted to the DirectX 8.1 behavior of displaying a warning to obtain the stub separately, and the readme.txt files have also been reverted with information on the process to obtain the stub.”
Q: What is new specifically in DirectX 9.0b?
A: DirectX 9.0b includes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX 9.0 APIs.
Q: Will there also be a SDK update coming?
A: Yes, Microsoft DirectX 9.0b SDK Summer 2004 Update will be released this summer.
Q: What will be included in that?
A: Primary areas of concentration for the Summer Update was for the Direct3D Extension Library (D3DX), Graphics Samples, Sample Frame work, tools and documentation. This release includes updated developer runtime and the previously released DirectX 9.0b Redistributable.
Q: What was new in DirectX 8.0a?
A: DirectX 8.0a contains updates for issues with international installs on Windows 2000 and issues where input devices could have buttons disabled that were enabled with previous DirectX releases. There are no other changes.
Q: What operating systems is DirectX 9 compatible with?
A: Windows 98, Windows 98SE, Windows Me, Windows 2000(Professional and server editions), Windows XP. and Windows Server 2003. DirectX 9 is NOT compatible with Windows NT or Windows 95.
Q: You do not have Windows 95 listed as being compatible with Microsoft DirectX. What should I do?
A: The latest version available for Windows 95 is DirectX 8.0a.
Q: Is DirectX compatible with Windows NT?
A: Yes, though the only version supported on Windows NT 4.0 is DirectX 3.0a. You must also install Windows NT 4.0 Service Pack 6.
Q: How much space will this take up on the hard drive?
A: It will take about 18 MB of space once downloaded and installed. About 60 MB for installation.
Q: Do I need to install DirectX 9?
A: There are improvements over DirectX 8.1, but most users will do fine with running 8.1. Future games and hardware will obviously take better advantage of DirectX 9.
Q: What was new in DirectX 9.0a?
A: DirectX 9.0a featured bug fixes as well as improvements in performance within the graphics and networking components of the original DirectX 9.0 runtime.
Q: I thought that a DirectX Icon would appear in my control panel – what has happened to it?
A: The DirectX Control Panel is only included in the SDK versions of DirectX.
Q: What is the DirectX SDK?
A: The Microsoft® DirectX® 9 Software Development Kit (SDK) contains the tools needed to build cutting-edge, media-rich, interactive applications. It includes the run-time, headers and libs, sample executables, sample source, documentation, DirectX utilities, and support for both C++ and Visual Basic® development.
Q: What versions of DirectX are shipped with the different Microsoft Operating Systems?
A: Windows 98 comes with native DirectX 5 support. While Windows 98 Second Edition comes with DirectX 6.1a and Windows 2000 DirectX 7. Windows NT comes with DirectX 3.0a, and Windows 95 comes with DirectX 2. Windows XP comes with Direct X 8.1. Windows 2003 Server comes with DirectX 8.1.
Q: Will new versions of DirectX affect older games?
A: No, as each new version of DirectX is backwards compatible with older versions.
Q: Will Windows 2000 users finally be able to update to each new version of DirectX as they are released?
A: Yes – all future versions of DirectX will install onto Windows 2000.
Q: Does DirectX have a role with Xbox?
A: Yes, all DirectX technologies had played a role in the development of the Xbox both through Microsoft and NVIDIA. Xbox either shipped with a customized version of DirectX or has a similar set of non-updateable technologies.

PC BUYING TIPS

INTRODUCTION

This section of Computer Tips is designed to help all users understand and make better decisions when purchasing computer hardware, software and computers.

BUYING LOCATIONS
The buying location can be the first and most costly mistake made by end-users when purchasing a computer or computer equipment. We have listed the main types of locations you will be able to purchase computer equipment or from and what to look out for. Please select one of the below locations you plan on purchasing from.

AUCTIONS
Auctions / On-line auctions are becoming more popular location for people to purchase computer equipment because of the low prices. However there are several things to watch for when buying through auctions.

Scams – On-line auctions are now the number one location where thefts and scams will occur. If at all possible look at the sellers history or profile. Always remember if it sounds to be good to true, it probably is.

Piracy – With the advances in technology it is now possible for anyone to make their own CDs it is possible that you may be buying copied software which is illegal. Ensure that the software you are buying is a authentic copy, documentation is included with the software, and the CD does not appear to be burned. Generally burned CDs will have a unusual color such as green or gold tint. However it is still possible for someone to make CDs which can look like an ordinary CD. Another way of possibly determining if Illegal copy is the price.

On-line Auctions – Companies such as E-bay or Yahoo may provide auctions which other people have the capability of listing products that they are selling. We recommend that if you purchase through an an auction that you only pay by check to prevent possible credit card fraud. If you need to user your credit card consider such options as PayPal.

Return Policy – Ensure that the you verify what the resellers return policy may be incase the device is not functioning or is not compatible with your computer. Extra Note: Generally software cannot be returned to the place of purchase to help prevent software piracy.

Warranty – Verify the warranty on the product insuring that it is either provided by the manufacture of the product or the place of purchase.

INTERNET
With the increase popularity of the Internet it is becoming easier, faster, and cheaper to buy over the Internet however pay close attention to what you are buying.

Security – When buying over the Internet it is generally a good recommendation to ensure the page you are purchasing from offers some type of security. When entering your credit card information look for a small padlock on your browser toolbar indicating that all information entered will have additional security helping to prevent information from being stolen by another entity. If you do not see this icon in the bottom left or mid left of your browser its a good possibility the page does not offer this additional security.

Piracy – With the advances in technology it is now possible for anyone to make their own CDs it is possible that you may be buying copied software which is illegal. Ensure that the software you are buying is a authentic copy, documentation is included with the software, and the the CD does not appear to be burned. Generally burned CDs will have a unusual color such as green or gold tint (unfortunately you will not be able to see the CD until bought). However it is still possible for someone to make CDs which can look like an ordinary CD.

Return Policy – Ensure that the you verify what the resellers return policy may be incase the device is not functioning or is not compatible with your computer. Extra Note: Generally software cannot be returned to the place of purchase to help prevent software piracy.

Warranty – Verify the warranty on the product insuring that it is either provided by the manufacture of the product or the place of purchase.

E-mail receipt – Generally most companies will provide you with a e-mail confirming that they have received your order. Keep this e-mail until your product has arrived.

LOCAL RETAILER
A Local Retailer is one of the safest location to buy computer hardware and software. However issues can still arise be sure to watch out for the following.

Incorrect Information – Unfortunately good help can be hard to find. Its possible for representatives to give you incorrect or false information either to help the sell or because they representative may not know all of the required information. If the sells rep says that a certain hardware device is capable of something see if they can demonstrate it to help certify their claim.

Return Policy – Ensure that the you verify what the resellers return policy may be incase the device is not functioning or is not compatible with your computer. Extra Note: Generally software cannot be returned to the place of purchase to help prevent software piracy.

Warranty – Verify the warranty on the product insuring that it is either provided by the manufacture of the product or the place of purchase.

MAIL ORDER
Mail order is sometimes considered an unsafe location to purchase your computer software and or hardware from. However taking the correct steps can help prevent issues from occurring.

Company information – Ensure that the company provides a valid phone number. Allowing you to speak directly with someone if required.

Return Policy – Ensure that the you verify what the resellers return policy may be incase the device is not functioning or is not compatible with your computer. Extra Note: Generally software cannot be returned to the place of purchase to help prevent software piracy.

Company – Try determining how long the company has been in business. There have been several mail order companies which have packed up and left overnight leaving you without anyone to contact.

Warranty – Verify the warranty on the product insuring that it is either provided by the manufacture of the product or the place of purchase.