Office Enterprise 2007 Microsoft Windows XP, antiv

As we all know, Windows XP SP2 adds a brand new safety feature - DEP (Date Execution Prevention Information Execution Protection), you can safeguard your laptop or computer from viruses damage. According to Microsoft's DEP technologies, Intel and AMD have created a corresponding anti-virus CPU.


DEP

principle of anti-virus system if you ever upgrade to SP2, SP2's DEP characteristic enabled to avoid virus damage, for the reason that the DEP to monitor the many methods to stop the virus inside the secured memory place to operate damaging code. DEP by means of the processor's NX (No eXecute) function, search for the memory not explicitly includes executable code inside the information (these data are normally the source code of the virus), find the data, NX them are marked as . If following a plan in memory, trying to put into action these with So in the event you operate a software program that continues to be uncovered, DEP will likely be the virus code is marked as

If you would like to provide complete play to DEP's protection, additionally to outside should certainly upgrade to SP2, your CPU need to also assistance the DEP technology. At present common 32-bit processor (for instance P4 Northwood, etc.) don't support NX, to help the technologies, the principal CPU 64-bit AMD processor (Athlon 64, AMD Opteron), and Intel's Itanium CPU, J Sequence P4 Prescott, is mentioned to nVIDIA, By way of, Transmeta and other firms also program to add the NX in its chip technologies, but the pace of those companies updates NX as well slow, take some time prior to the official start.

approach to enable or disable DEP

By default, SP2 essential Windows applications and services only to allow the DEP. But you may also set up their own, so that all programs about the laptop or computer enabled DEP, so that you can prevent the virus. Furthermore to Acrobat Reader5.0

example, the make all the applications and companies are enabled DEP, approach of operation is: Account login with administrator privileges SP2, after which click on Double-click Enable DEP .

If you want to a system (for example Acrobat Reader five.0) to disable DEP, you can actually click the earlier mentioned After the system is especially susceptible to assault, the virus can sneak into the program, after which spread to other programs around the laptop or computer and contacts in Outlook, and ruin your individual files. DEP is enabled, if any, right after the system can't function appropriately, it is easy to acquire the software program vendor DEP-compatible version from the plan, if no such version is to disable DEP.


to assistance DEP, P4 Prescott

use of technologies consistent with EDB Microsoft's DEP feature, Intel for their CPU developed technology. At present Intel P4 Prescott (mPGA478 with LGA775 offer) or for that C0 core stepping D0, the latest J Sequence P4 Prescott core with E0 stepping. Only J Sequence P4 Prescott with anti-virus purpose, only it truly assistance EDB technology to fulfill the SP2's DEP antivirus characteristic that allows for buffer overflow (buffer overrun) Vulnerability in the design from the virus fail to avoid their replication and unfold to other techniques .

In case you use a P4 Prescott / Celeron D (C0 stepping core) processors,Office Enterprise 2007, upgraded to SP2, you'll obtain a deadlock in the Windows XP running program, startup display, but do not put on P4 Northwood may have this difficulty. This is simply because SP2 can open P4 Prescott (C0 stepping core) contains the EDB features, but this type of CPU plus the execution just isn't EDB, EDB component of its inner energy transistor will not operate, and for that reason trigger the system to die lock.

To solve this trouble, Microsoft has released inside the September 14 amendment towards the relevant paperwork, we are able to visit Microsoft's official website to download. English edition of Windows XP end users to download deal with is simplified Chinese edition of XP people to obtain handle

to help DEP, AMD 64-bit CPU making use of EVP strategies

AMD 64-bit processors the first to help Microsoft's DEP technology. To be able to meet the DEP, AMD and Microsoft to style investigation and improvement of AMD's new chips function AMD 64-bit processors (including the Athlon 64/Athlon 64 FX / Athlon 64 cellular edition / Sempron cellular model, etc.) may have the EVP. EVP and SP2's DEP characteristic technical cooperation, to avoid

Even so, AMD 64-bit processors inside the machine right after installing SP2, as long as your computer begins, the DEP feature, and configure the needed driver files named Mpegport.sys hardware, when you use the Sigma Design Provider Realmagic Hollywood In addition DVD decoder software program will conflict together with the DEP. This can be since older drivers are some comparable operation using the virus, so SP2 to error it for that virus, which trigger the DEP, cause the computer to frequently restart. To solve this issue, Microsoft recommends that users update the older driver, or disable decoding software for the DEP, turn off the SP2 virus protection.