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COM+ and .NET

I have written a COM+ server and it works fine with vb 6.0 clients, but it
does not with .NET clients.

For the COM + server, I created a Class Library project and a COM class
inside. Inside the COM class I wrote a function. I built the project and
generated the COMserver.dll and COMserver.tlb files (If I try to do this with
the .dll file I get the message "One or more files do not contain components
or type libraries. These files cannot be installed"). All was OK.

I created an COM+ Application in my machine and I installed a new component
with the COMserver.tlb file. All was OK.

After, I created a Windows application client with VB 6 which called the
component I have already created. It all was OK again.

Finally I created a Windows application client with VB .NET and when I tried
to register the COMserver I got the message:

"A reference to 'COMserver' could not be added. Converting the type library
to a .NET assembly failed. Type library COMserver was exported from a CLR
assembly and can not be re-imported as a CLR assembly"

I hope some of you can help me. Thanks

Fidias Gil de Montes
Nov 21 '05 #1
4 3797
Hi there... Make sure your COM's references are present in the machine from
which you're trying to create your .NET Windows App. Regards.
--
Angel J. Hernández M.
MCP - MCAD - MCSD - MCDBA
http://groups.msn.com/desarrolladoresmiranda
http://ajhsis.net

"Fidias Gil de Montes" <Fidias Gil de Mo****@discussions.microsoft.com>
escribió en el mensaje
news:67**********************************@microsof t.com...
I have written a COM+ server and it works fine with vb 6.0 clients, but it
does not with .NET clients.

For the COM + server, I created a Class Library project and a COM class
inside. Inside the COM class I wrote a function. I built the project and
generated the COMserver.dll and COMserver.tlb files (If I try to do this
with
the .dll file I get the message "One or more files do not contain
components
or type libraries. These files cannot be installed"). All was OK.

I created an COM+ Application in my machine and I installed a new
component
with the COMserver.tlb file. All was OK.

After, I created a Windows application client with VB 6 which called the
component I have already created. It all was OK again.

Finally I created a Windows application client with VB .NET and when I
tried
to register the COMserver I got the message:

"A reference to 'COMserver' could not be added. Converting the type
library
to a .NET assembly failed. Type library COMserver was exported from a CLR
assembly and can not be re-imported as a CLR assembly"

I hope some of you can help me. Thanks

Fidias Gil de Montes

Nov 21 '05 #2
They are present. At least I can create then COM Application with Component
Services and VB 6 and VB.NET list it as a COM Component. In fact, the VB t6
client works fine.

Fidias Gil de Montes

"Angel J. Hernández M." wrote:
Hi there... Make sure your COM's references are present in the machine from
which you're trying to create your .NET Windows App. Regards.
--
Angel J. Hernández M.
MCP - MCAD - MCSD - MCDBA
http://groups.msn.com/desarrolladoresmiranda
http://ajhsis.net

"Fidias Gil de Montes" <Fidias Gil de Mo****@discussions.microsoft.com>
escribió en el mensaje
news:67**********************************@microsof t.com...
I have written a COM+ server and it works fine with vb 6.0 clients, but it
does not with .NET clients.

For the COM + server, I created a Class Library project and a COM class
inside. Inside the COM class I wrote a function. I built the project and
generated the COMserver.dll and COMserver.tlb files (If I try to do this
with
the .dll file I get the message "One or more files do not contain
components
or type libraries. These files cannot be installed"). All was OK.

I created an COM+ Application in my machine and I installed a new
component
with the COMserver.tlb file. All was OK.

After, I created a Windows application client with VB 6 which called the
component I have already created. It all was OK again.

Finally I created a Windows application client with VB .NET and when I
tried
to register the COMserver I got the message:

"A reference to 'COMserver' could not be added. Converting the type
library
to a .NET assembly failed. Type library COMserver was exported from a CLR
assembly and can not be re-imported as a CLR assembly"

I hope some of you can help me. Thanks

Fidias Gil de Montes


Nov 21 '05 #3
I could solve my problem referencing EnterpriseServices and derivating my
classes from ServicedComponent (look at
http://www.15seconds.com/issue/030501.htm for details).

Now, I want to use COM+ role based security for my methods, but Component
Services does not show me my class methods. I mean, I can see my components,
their interfaces, but below those interfaces I can't see any method.

Any idea?

Fidias Gil de Montes

"Fidias Gil de Montes" wrote:
I have written a COM+ server and it works fine with vb 6.0 clients, but it
does not with .NET clients.

For the COM + server, I created a Class Library project and a COM class
inside. Inside the COM class I wrote a function. I built the project and
generated the COMserver.dll and COMserver.tlb files (If I try to do this with
the .dll file I get the message "One or more files do not contain components
or type libraries. These files cannot be installed"). All was OK.

I created an COM+ Application in my machine and I installed a new component
with the COMserver.tlb file. All was OK.

After, I created a Windows application client with VB 6 which called the
component I have already created. It all was OK again.

Finally I created a Windows application client with VB .NET and when I tried
to register the COMserver I got the message:

"A reference to 'COMserver' could not be added. Converting the type library
to a .NET assembly failed. Type library COMserver was exported from a CLR
assembly and can not be re-imported as a CLR assembly"

I hope some of you can help me. Thanks

Fidias Gil de Montes

Nov 21 '05 #4
I could solve my problem referencing EnterpriseServices and derivating my
classes from ServicedComponent (look at
http://www.15seconds.com/issue/030501.htm for details).

Now, I want to use COM+ role based security for my methods, but Component
Services does not show me my class methods. I mean, I can see my components,
their interfaces, but below those interfaces I can't see any method.

Any idea?

Fidias Gil de Montes

"Fidias Gil de Montes" wrote:
I have written a COM+ server and it works fine with vb 6.0 clients, but it
does not with .NET clients.

For the COM + server, I created a Class Library project and a COM class
inside. Inside the COM class I wrote a function. I built the project and
generated the COMserver.dll and COMserver.tlb files (If I try to do this with
the .dll file I get the message "One or more files do not contain components
or type libraries. These files cannot be installed"). All was OK.

I created an COM+ Application in my machine and I installed a new component
with the COMserver.tlb file. All was OK.

After, I created a Windows application client with VB 6 which called the
component I have already created. It all was OK again.

Finally I created a Windows application client with VB .NET and when I tried
to register the COMserver I got the message:

"A reference to 'COMserver' could not be added. Converting the type library
to a .NET assembly failed. Type library COMserver was exported from a CLR
assembly and can not be re-imported as a CLR assembly"

I hope some of you can help me. Thanks

Fidias Gil de Montes

Nov 21 '05 #5

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