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Windows File Protection guide

Updating System Files

Itís probably come to your attention now that if WFP replaces protected system files then how exactly can they be updated with newer versions? Well there are several ways this can be done.

1.       During installation of Microsoft Windows Service Packs.

2.       Updates installed using Windows Update.

3.       Installation of Microsoft Hotfixes. Hotfixes from Microsoft are installed via the use of hotfix.exe, which allows the replacement of protected system files without WFP interfering. Most Hotfixes for Windows 2000/XP are then combined into the Service Packs, although Hotfixes are always available before Service Packs (As such Hotfixes are temporary fixes). A list of installed Hotfixes can be viewed in Add/Remove Programs, e.g.

As you can see the 2 Hotfixes shown above will be part of Windows XP Service Pack 1.

4.       Operating System installation/upgrades that use Winnt32.exe.

There is of course another less automated way to change system files, that being to first copy the file into the dllcache folder, over-writing the current copy, then trying to replace the system file itself as located in the system32 directory, or wherever it may. Should WFP initiate by this it will merely replace the system file with the one stored in the dllcache folder Ė which by now would have already been changed to the same as what you want to replace the system file with. The opposite however is not true, i.e. do not try replace the system file, then replace the dllcacheís copy.

 

Initial Preparation

Before you start to do anything with WFP you must be logged in as an Administrator. Many of the changes you can make require you to have such administrative privileges, so save yourself a lot of trouble & just be sure you are logged on as Administrator now.

After you have logged in as administrator you should update an ERD (Emergency Repair Disk). Although itís unlikely youíll need this, itís best to be safe. To make an ERD take the following steps;

1.       Click on Start, (All Programs) Programs, Accessories, System Tools then Backup.

2.       Select the Emergency Repair Disk option in the Welcome tab in Windows 2000 & backup your registry (This is where any changes you make to WFP are stored).

Now that youíve backed up & are logged on as the correct user we can get to use WFP.

 



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