Reference VS2005 assembly from VS2003 project

Jody Gelowitz

Is this possible?

I have compiled an assembly in VS2005 and am trying to add a reference to
that assembly from my VS2003 project. The error that I am getting is:
A reference to '{path to vs2005 dll}' could not be added. This is not a
valid assembly or COM component. ONly assemblies with extension 'dll' and
COM components can be referenced. Please make sure that hte file is
accessible, and that it is a valid assembly or COM component.

Do I need to make my VS2005 assembly "COM Visible" and "Register for COM
interop" in order for this to work?

Thanks,
Jody

Aug 31 '05 #1

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Jody Gelowitz

I have tried making the VS2005 assembly COM Visible and Register for COM
interop, but that did not work.

Jody
"Jody Gelowitz" <jg**************@blah.leevalley.com> wrote in message
news:OF**************@TK2MSFTNGP09.phx.gbl...

Is this possible?

I have compiled an assembly in VS2005 and am trying to add a reference to
that assembly from my VS2003 project. The error that I am getting is:
A reference to '{path to vs2005 dll}' could not be added. This is not a
valid assembly or COM component. ONly assemblies with extension 'dll' and
COM components can be referenced. Please make sure that hte file is
accessible, and that it is a valid assembly or COM component.

Do I need to make my VS2005 assembly "COM Visible" and "Register for COM
interop" in order for this to work?

Thanks,
Jody

Aug 31 '05 #2

Mattias Sjögren

Do I need to make my VS2005 assembly "COM Visible" and "Register for COM
interop" in order for this to work?

No, you need to switch to VS2005 / .NET 2.0 for the client too (the
referencing project).
Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Aug 31 '05 #3

Jody Gelowitz

I have not tried this yet, but does it work in the opposite direction where
a VS2005 project references a VS2003 assembly?

I was thinking about taking my VS2003 project and creating an interface for
it, then create a shell EXE in VS2005 to call the VS2003 assembly.

Jody

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:Or**************@TK2MSFTNGP09.phx.gbl...

Do I need to make my VS2005 assembly "COM Visible" and "Register for COM
interop" in order for this to work?

No, you need to switch to VS2005 / .NET 2.0 for the client too (the
referencing project).
Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Aug 31 '05 #4

Mattias Sjögren

>I have not tried this yet, but does it work in the opposite direction where

a VS2005 project references a VS2003 assembly?

Yes that should work fine.

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

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