How to Use Qfixapp.exe In Windows XP

This article describes the Quick Fix utility (Qfixapp.exe) that is included with the Application Compatibility Toolkit for Windows XP and Windows .NET. Qfixapp.exe is a tool that includes pre-packaged fixes that provide an easy way to fix a program.

Use Qfixapp.exe To Apply Program Fixes

You can use Qfixapp.exe to quickly apply various program fixes (AppFixes, also known as "shims") to a program to determine their effectiveness. Qfixapp.exe reads the %SystemRoot%\windows\apppatch\sysmain.sdb database to produce a list of available fixes. When you select an AppFix, you can start the program executable (.exe) file, and the AppFix will be applied. If a suitable AppFix is found, the tool eventually helps you to generate and test matching file information. When you run Qfixapp.exe, you see the following items:

* The The application for which to apply the fix(es) check box. This setting disables existing fixes in the database.

* The Layer tab with the Choose one of the existing layers to apply to your app box that contains the following entries:

256 Color
640X480
Disable Themes
Internaltional
LUA(Limited User Account)
LUACleanUp
NT4SP5
ProfilesSetup
Win2000
Win95
Win98

* The Fixes tab. On this tab you can select the individual fixes that you want to apply.

Example of How to Use Qfixapp.exe
1. Start Notepad, and then click About Notepad on the Help menu. Note that the version is 5.1.

2. Start Qfixapp.exe, click Win95, click Browse, and then open the Windows folder. Note that the Windows\System32 folder is protected by Windows File Protection, so it is not able to use the layers.

3. Click Notepad.exe, click Open, and then click Run.

4. Start Notepad, and then click About Notepad on the Help menu. Note that the version is now 4.0.

If you click ViewLog, you could see what AppFix(es) are being used. If you click Advanced, you could see information about the .exe file. You can click Add Matching Info, and then select files that are related to the .exe file to identify that particular program. After you finish that step, you could click Create Fix Support to add the layers with the Matching Information (GRABMI) and create an XML-based database that is named YourAppName.sdb. Note that in the preceding example it is named Notepad.sdb, and is in the AppPatch folder.