System.Runtime.InteropServices.COMException: Unknown error (0x80005000)

Question

This is the detailed error info.

Failures

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Runtime.InteropServices.COMException: Unknown error (0x80005000)
   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_NativeObject()

Code that causes the above exception:

 DirectoryEntry de1 = new DirectoryEntry("RNA:");
  IRnaNamespace rnaNamespace = (IRnaNamespace)de1.NativeObject;

After the del object is created, I try to watch the values for variant del, and this is the result:
http://picasaweb.google.com/lh/photo/WFhTvRWS2w3TL-gad1OvuQ?feat=directlink

The OS is Windows2008 R2 64bits. And it can run successfully on Windows2008Sp2 32bit.

Answer 1

Hello

How do you declare the IRnaNamespace interface. I have the feeling that the IRnaNamespace  interface does not handle 64bit values correctly.

If you change the code to

DirectoryEntry de1 = new DirectoryEntry("RNA:");
object rnaNamespace = de1.NativeObject;

Do you still see the problem? What's the value of rnaNamespace ?

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Regards,
Jialiang Ge
MSDN Subscriber Support in Forum
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Answer 2

Hello

How are you? Could you please update me about the current status of the issue? If you have any other questions, please feel free to post here. 

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Regards,
Jialiang Ge
MSDN Subscriber Support in Forum
If you have any feedback of our support, please contact [e-mail].
Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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Answer 3

The error is caused by the following statement:

DirectoryEntry de1 = new DirectoryEntry("RNA:");

Because it will call another project AAA which is built in 32 bits enironment to create the directory. After rebuilt AAA in 64 bits, everything is OK.