ROOT.CIMV2.Win32.Product spurrious error, how to fix?

[=?Utf-8?B?TWFyaw==?=]

Hi...

We have some code written in C# that's trying to manage a farm of servers.
It's using the WMI classes to look at the remote machine for certain
installed packages, and occasionally it blows up but I can't figure out why.
The code is

ManagementScope scope = new
ManagementScope(string.Format(@"\\{0}\root\cimv2", serverName));
scope.Connect();
foreach (Product product in ROOT.CIMV2.Win32.Product.GetInstances(scope))
{
....
}

It blows up on the MoveNext() on the enumerator sometimes but it comes and
goes.

I didn't find anything in the extended info on the ManagementException that
seemed to make it any clearer. That comes out as
<INSTANCE CLASSNAME="__ExtendedStatus">
<QUALIFIER NAME="abstract" PROPAGATED="true" TYPE="boolean"
OVERRIDABLE="false" TOINSTANCE="true"><VALUE>TRUE</VALUE></QUALIFIER>
<PROPERTY NAME="__PATH" CLASSORIGIN="___SYSTEM" TYPE="string"></PROPERTY>
<PROPERTY NAME="__NAMESPACE" CLASSORIGIN="___SYSTEM" TYPE="string"></PROPERTY>
<PROPERTY NAME="__SERVER" CLASSORIGIN="___SYSTEM" TYPE="string"></PROPERTY>
<PROPERTY.ARRAY NAME="__DERIVATION" CLASSORIGIN="___SYSTEM" TYPE="string">
<VALUE.ARRAY><VALUE>__NotifyStatus</VALUE></VALUE.ARRAY>
</PROPERTY.ARRAY>
<PROPERTY NAME="__PROPERTY_COUNT" CLASSORIGIN="___SYSTEM"
TYPE="sint32"><VALUE>5</VALUE></PROPERTY>
<PROPERTY NAME="__RELPATH" CLASSORIGIN="___SYSTEM" TYPE="string"></PROPERTY>
<PROPERTY NAME="__DYNASTY" CLASSORIGIN="___SYSTEM"
TYPE="string"><VALUE>__NotifyStatus</VALUE></PROPERTY>
<PROPERTY NAME="__SUPERCLASS" CLASSORIGIN="___SYSTEM"
TYPE="string"><VALUE>__NotifyStatus</VALUE></PROPERTY>
<PROPERTY NAME="__CLASS" CLASSORIGIN="___SYSTEM"
TYPE="string"><VALUE>__ExtendedStatus</VALUE></PROPERTY>
<PROPERTY NAME="__GENUS" CLASSORIGIN="___SYSTEM"
TYPE="sint32"><VALUE>2</VALUE></PROPERTY>
<PROPERTY NAME="Description" CLASSORIGIN="__ExtendedStatus"
PROPAGATED="true" TYPE="string">
<QUALIFIER NAME="CIMTYPE" PROPAGATED="true" TYPE="string"
TOINSTANCE="true"><VALUE>string</VALUE></QUALIFIER>
</PROPERTY>
<PROPERTY NAME="Operation" CLASSORIGIN="__ExtendedStatus" TYPE="string">
<QUALIFIER NAME="CIMTYPE" PROPAGATED="true" TYPE="string"
TOINSTANCE="true"><VALUE>string</VALUE></QUALIFIER>
<VALUE>ExecQuery</VALUE>
</PROPERTY>
<PROPERTY NAME="ParameterInfo" CLASSORIGIN="__ExtendedStatus" TYPE="string">
<QUALIFIER NAME="CIMTYPE" PROPAGATED="true" TYPE="string"
TOINSTANCE="true"><VALUE>string</VALUE></QUALIFIER>
<VALUE>select * from Win32_Product</VALUE>
</PROPERTY>
<PROPERTY NAME="ProviderName" CLASSORIGIN="__ExtendedStatus" TYPE="string">
<QUALIFIER NAME="CIMTYPE" PROPAGATED="true" TYPE="string"
TOINSTANCE="true"><VALUE>string</VALUE></QUALIFIER>
<VALUE>WinMgmt</VALUE>
</PROPERTY>
<PROPERTY NAME="StatusCode" CLASSORIGIN="__NotifyStatus" PROPAGATED="true"
TYPE="uint32">
<QUALIFIER NAME="CIMTYPE" PROPAGATED="true" TYPE="string"
TOINSTANCE="true"><VALUE>uint32</VALUE></QUALIFIER>
</PROPERTY>
</INSTANCE>

Any pointers on how to determine the cause and make it go away?

Thanks
Mark

[Jeffrey Tan[MSFT]]

Hi Mark,

What do you mean in details of code "blows up"? Do you get any exception or
crash with the code? If so, can you provide the exception details and call
stack for analysis?

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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[=?Utf-8?B?TWFyaw==?=]

Hi Jeffrey...

The exception data provided is all I've got. The code is throwing an
exception in the MoveNext() iterator of the code snippet provided. The
exception is a ManagementException (ThrowWithExtendedInfo). There are no
nested exceptions, and the ManagementException ErrorInfo is in the original
post. Unfortunately, I didn't see anything particularly helpful in that
either.

Thanks
Mark
""Jeffrey Tan[MSFT]"" wrote:

Hi Mark,

What do you mean in details of code "blows up"? Do you get any exception or
crash with the code? If so, can you provide the exception details and call
stack for analysis?

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscripti...ult.aspx#notif
ications.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

[Jeffrey Tan[MSFT]]

Hi Mark,

Sorry but where do you get this information? Do you get it under VS2005
debugger or without debugging? Why did you get it as XML format type?

I have never seen this xml format exception info before, and it is hard to
read from it.

Also, is it possible to obtain the stack trace of this exception? It is
better if you can break in the first chance notification of
ManagementException and get the stack trace.

Finally, can you provide a little sample project to help me reproduce this
problem locally? Without reproducing the problem, it is hard to guess the
root cause.

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support

[Jeffrey Tan[MSFT]]

Hi Mark,

Thanks for your feedback.

Without reproducing this problem, it is hard to analysis it. Since this is
a WMI issue, microsoft.public.win32.programmer.wmi is dedicated for this
topic. But, I am the support engineer of that newsgroup and I would not
expect you will get much help there with the current information.

Regarding the current situation, I would recommend you to contact Microsoft
CSS for a case support; the case support engineer may help you to perform
some remote debugging on your problematic machine.

You can contact Microsoft CSS at 1-[phone] or by choosing one of the
options listed at:
http://www.microsoft.com/services/mi...v_support.mspx

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support