Hi
I understand that the tlb file you means is COM Object but not a ActiveX
control.
If I misunderstand, please let me know.
Because the VS.NET 2005 IDE will generally do the similar job as the tool
tlbimp did.
So I think you may try to use the tlbimp tool to generate the interop
assembly to see what is the detailed error message.
Also I understand that add reference to the tlb previously understand
Vs.NET 2003 will work fines.
I assume the tlb file is OK.
But because the tlb file may refer to other dll/tlb file, the problem may
be caused by that certain tlb/dll required by the tlb is changed or
corrupted.
So please try the tlbimp directly to see what is the error message.
Type Library Importer (Tlbimp.exe)
http://msdn2.microsoft.com/en-us/library/tt0cf3sx.aspx
Best regards,
Peter Huang
Microsoft Online Community Support
==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
mj - 03 Aug 2006 15:44 GMT
Hi Peter,
Thank you for your quick response. I will do as you have suggested. With
all the other test I have done it looks like the tlb given to me by a third
party vendor is currupted. I will do what you suggested to further test the
tlb file.
Thanks again for all your help!

Signature
mj
> Hi
>
[quoted text clipped - 29 lines]
> ==================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
"Peter Huang" [MSFT] - 04 Aug 2006 06:10 GMT
Hi,
Thanks for your quickly reply!
Please take your time to perform the test.
If you have any question about this issue, please feel free to post here.
Best regards,
Peter Huang
Microsoft Online Community Support
==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.