Office Professional 2007 Microsoft Windows XP, ant

As we all know, Windows XP SP2 adds a new protection feature - DEP (Date Execution Prevention Data Execution Protection), you could protect your computer from viruses damage. In line with Microsoft's DEP technology, Intel and AMD have developed a corresponding anti-virus CPU.


DEP

principle of anti-virus program when you upgrade to SP2, SP2's DEP characteristic enabled to stop virus damage, considering that the DEP to monitor the diverse techniques to stop the virus inside the protected memory place to run damaging code. DEP via the processor's NX (No eXecute) function, look for the memory not explicitly consists of executable code within the information (these data are regularly the supply code for the virus), get the information,Office Professional 2007, NX them are marked as . If after a plan in memory, trying to apply these with So, should you run a software program which has been uncovered, DEP will place the virus code marked as

If you want to give full play to DEP's protection, additionally to outside ought to upgrade to SP2, your CPU need to also support the DEP technologies. Currently prevalent 32-bit processor (for instance P4 Northwood, and so on.) do not support NX, to help the technologies, the key CPU 64-bit AMD processor (Athlon 64, AMD Opteron), and Intel's Itanium CPU, J Sequence P4 Prescott, is said to nVIDIA, Through, Transmeta as well as other companies also strategy to add the NX in its chip technologies, however the speed of those businesses updates NX as well sluggish, get some time before the official launch.

strategy to allow or disable DEP

By default, SP2 important Windows packages and services only to enable the DEP. But you could also create their very own, to ensure that all programs on the computer enabled DEP, so as to stop the virus. Furthermore to Acrobat Reader5.0

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

If you need to a system (such as Acrobat Reader five.0) to disable DEP, you are able to click on the over After the plan is pretty susceptible to assault, the virus can sneak in to the plan, and then spread to other software programs around the personal computer and contacts in Outlook, and ruin your individual files. DEP is enabled, if any, immediately after the plan can not operate effectively, you can actually obtain the software vendor DEP-compatible version for the program, if no this kind of version is to disable DEP.


to assistance DEP, P4 Prescott

use of technologies according to EDB Microsoft's DEP feature, Intel for his or her CPU developed technology. At present Intel P4 Prescott (mPGA478 with LGA775 package deal) or for your C0 core stepping D0, the latest J Sequence P4 Prescott core with E0 stepping. Only J Series P4 Prescott with anti-virus purpose, only it really help EDB technologies to meet the SP2's DEP antivirus characteristic that makes it possible for for buffer overflow (buffer overrun) Vulnerability within the style of your virus fall short to stop their replication and spread to other techniques .

When you use a P4 Prescott / Celeron D (C0 stepping core) processors, upgraded to SP2, you'll find a deadlock in the Windows XP working technique, startup screen, but do not place on P4 Northwood could have this problem. This really is mainly because SP2 can open P4 Prescott (C0 stepping core) includes the EDB functions, but this type of CPU along with the execution is not EDB, EDB component of its inner energy transistor won't run, and hence cause the program to die lock.

To solve this dilemma, Microsoft has introduced within the September 14 amendment towards the related documents, we are able to go to Microsoft's official site to obtain. English version of Windows XP users to obtain deal with is simplified Chinese model of XP people to download handle

to help DEP, AMD 64-bit CPU using EVP techniques

AMD 64-bit processors the first to assistance Microsoft's DEP technologies. As a way to meet the DEP, AMD and Microsoft to design investigation and advancement of AMD's new chips characteristic AMD 64-bit processors (including the Athlon 64/Athlon 64 FX / Athlon 64 mobile version / Sempron mobile version, etc.) could have the EVP. EVP and SP2's DEP function technical cooperation, to prevent

However, AMD 64-bit processors inside the device immediately after putting in SP2, so long as your laptop or computer begins, the DEP function, and configure the needed driver files named Mpegport.sys hardware, once you make use of the Sigma Style Company Realmagic Hollywood Plus DVD decoder software program will conflict together with the DEP. This is because older drivers are some comparable operation together with the virus, so SP2 to error it for that virus, which trigger the DEP, cause the laptop or computer to repeatedly restart. To resolve this dilemma, Microsoft suggests that consumers update the older driver, or disable decoding software for that DEP, flip off the SP2 virus safety.