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Errors in Windows XP applications that start by using the ShellExecute() function
Article ID: 837633 - View products that this article applies to.
The Path value of the
App Pathsregistry key is added to the end of the PATH environment variable in applications that are started by using the ShellExecute() function. The correct configuration is for the Path value to be added to the beginning of the environment variable for these types of applications. The incorrect configuration causes applications to locate .dll files differently on a Microsoft Windows XP-based computer than on a computer that is running Microsoft Windows 2000 or earlier versions of Windows.
Service pack informationTo resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322389/EN-US/ )How to obtain the latest Windows XP service pack
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name Platform ------------------------------------------------------------------------ 02-Apr-2004 03:15 6.0.2800.1502 8,348,672 Shell32.dll x86 01-Apr-2004 23:10 5.1.2600.1363 676,864 Sxs.dll x86 10-Mar-2004 17:59 5.1.2600.1363 593,408 Xpsp2res.dll x86 01-Apr-2004 23:10 6.0.2800.1361 921,600 Comctl32.dll x86 01-Apr-2004 23:10 1,812 Controls.man x86 01-Apr-2004 23:10 621 Comctl.man x86
To work around this problem, you can create a Microsoft VBScript wrapper application that reformats the PATH environment variable before the variable is transferred to the application that you start by using the ShellExecute() function.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.
Windows XP supports "per application" paths. You can set your application's path in the
App Pathskey in the
HKEY_LOCAL_MACHINEregistry subtree. Create a new key, and then use your application's executable file name as the key name. Set this key's default value to the path of your executable file. Windows XP uses this entry to locate your application if Windows XP does not find the application in the current path. For example, Windows XP uses this entry if a user clicks Run on the Start menu and includes only the file name of the application, or if a shortcut icon does not include a path setting.
To identify the location of .dll files that are placed in a separate folder, you can also include another registry value entry that is named Path and set its value to the path of your .dll files. For example, configure the App Paths registry key as follows, where the Value data entry path is the path of your .dll files:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Application executable file name
Value Name: Path
Value data: path
Windows XP adds the path value, if it exists, to the PATH environment variable, if you use the ShellExecute() function to start your program.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates