When you define an abstract, complex type with a particle that references an abstract, globally declared element, you may receive the following error message:
Invalid Particle Derivation by Restriction
Base Type: {urn:my-namespace} ContainHead2Type
Derived Type: {urn:my-namespace} ContainMember2Type
This occurs when the particle that references the abstract, globally declared element restricts the element by creating a complex type that is in the same substitution group as the abstract element that is in the base type.
A 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:
Note 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 fix 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 Version Size File name
-------------------------------------------------
9-JUN-2002 4.10.9405.0 1,230,848 MSXML4.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
If you are not sure whether you have a service pack for MSXML 4.0 installed, check the version number of the MSXML4.dll file that is located in the System32 folder. By default, this file is hidden. If the version number is 4.10.9404.0, you have Service Pack 1 installed, and you may experience this problem.