Problems using a com object in asp.net

[Billse]

I am trying to use some com objects in .net that we have been using in ASP
Classic for quite some time now. I have follow the reading on how to add a
reference to the com object from Visual Studio and that does create a new
interop dll and place it in the bin directory. I can then access the methods
of the object through intellisense and everything compiles and looks like it
will run great. Then I actually run the program and receive the following
error.

Unable to cast COM object of type 'Namespace.TestClass' to interface type
'Namespace._Test'. This operation failed because the QueryInterface call on
the COM component for the interface with IID
'{9D2930FF-B15F-4047-8C28-1DF43362A34F}' failed due to the following error:
No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE)).

The code I used to produce this error is as follows:

Namespace.TestClass moTest = new Namespace.TestClass();
moTest.Load("OM005", "EN");

The error is thrown on the second line.

Any help on a resolution for this issue would be greatly appreciated. I am
using VS 2005.

Thanks

[Anthony Jones]

"Billse" <Billse@discussions.microsoft.com> wrote in message
news:DFFB3C4D-DD2C-49AD-8D6D-90D68798BAF8@microsoft.com...

> I am trying to use some com objects in .net that we have been using in ASP
> Classic for quite some time now. I have follow the reading on how to add

a

> reference to the com object from Visual Studio and that does create a new
> interop dll and place it in the bin directory. I can then access the

methods

> of the object through intellisense and everything compiles and looks like

it

> will run great. Then I actually run the program and receive the following
> error.
>
> Unable to cast COM object of type 'Namespace.TestClass' to interface type
> 'Namespace._Test'. This operation failed because the QueryInterface call

on

> the COM component for the interface with IID
> '{9D2930FF-B15F-4047-8C28-1DF43362A34F}' failed due to the following

error:

> No such interface supported (Exception from HRESULT: 0x80004002
> (E_NOINTERFACE)).
>
> The code I used to produce this error is as follows:
>
> Namespace.TestClass moTest = new Namespace.TestClass();
> moTest.Load("OM005", "EN");
>
> The error is thrown on the second line.
>
> Any help on a resolution for this issue would be greatly appreciated. I

am

> using VS 2005.
>

Sounds like you need to to rebuild the inter-op assembly. However this NG
is for classic ASP try an appropriate dotnet NG instead.

> Thanks

[csuriano@csgai.com]

I'm actually having the same problem. It worked fine in .Net 1.1, but when we upgraded to .Net 2.0 I get errors. Here's the code:

Dim objUser As TSUSEREXLib.ADsTSUserEx = Nothing
Dim strUserPath As String = String.Empty
Try

strUserPath = User.Path
objUser = CType(GetObject(strUserPath), TSUSEREXLib.ADsTSUserEx)
If Not objUser Is Nothing Then
objUser.GetInfo()
If _TerminalServices Is Nothing Then
_TerminalServices = New AD.adTerminalServicesOptions
End If
_TerminalServices.ProfilePath = objUser.TerminalServicesProfilePath.ToString


End If
Catch ex As Exception
end try

Here's the error message:
{"Unable to cast COM object of type 'System.__ComObject' to interface type 'TSUSEREXLib.ADsTSUserEx'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{C4930E79-2989-4462-8A60-2FCF2F2955EF}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))."} System.Exception

I can find the component in my registry, the interop is in the bin directory. And I forced .net to rebuild the interop by removing and re-adding the reference. And, as I said earlier, the exact same code runs in .Net 1.1.

Any help would be greatly appreciated.

Candi
---
Posted via DotNetSlackers.com

[Anthony Jones]

<csuriano@csgai.com> wrote in message
news:OhHWIvJ9GHA.3960@TK2MSFTNGP05.phx.gbl...

> I'm actually having the same problem. It worked fine in .Net 1.1, but when

we upgraded to .Net 2.0 I get errors. Here's the code:

>
> Dim objUser As TSUSEREXLib.ADsTSUserEx = Nothing
> Dim strUserPath As String = String.Empty
> Try
>
> strUserPath = User.Path
> objUser = CType(GetObject(strUserPath), TSUSEREXLib.ADsTSUserEx)
> If Not objUser Is Nothing Then
> objUser.GetInfo()
> If _TerminalServices Is Nothing Then
> _TerminalServices = New AD.adTerminalServicesOptions
> End If
> _TerminalServices.ProfilePath =

objUser.TerminalServicesProfilePath.ToString

>
>
> End If
> Catch ex As Exception
> end try
>
> Here's the error message:
> {"Unable to cast COM object of type 'System.__ComObject' to interface type

'TSUSEREXLib.ADsTSUserEx'. This operation failed because the QueryInterface
call on the COM component for the interface with IID
'{C4930E79-2989-4462-8A60-2FCF2F2955EF}' failed due to the following error:
No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE))."} System.Exception

>
> I can find the component in my registry, the interop is in the bin

directory. And I forced .net to rebuild the interop by removing and
re-adding the reference. And, as I said earlier, the exact same code runs in
..Net 1.1.

>
> Any help would be greatly appreciated.
>

You might get more more help if you followed the advice I had already given
to the OP. Ask in an appropriate .NET group, this is for classic ASP.

> Candi
> ---
> Posted via DotNetSlackers.com