Dll

[Guest]

How do you create an activeX dll (one that you can use in Microsoft access, Excel, or other Windows applications)? I've tried to use the Class Library, created the DLL, then used access to reference this dll, but when I do I get the error: "Can't add a reference to the specified file"

Thanks in advance!

 

[Armin Zingler]

How do you create an activeX dll (one that you can use in Microsoft
access, Excel, or other Windows applications)? I've tried to use the
Class Library, created the DLL, then used access to reference this
dll, but when I do I get the error: "Can't add a reference to the
specified file".

..Net DLL are assemblies, not COM DLLs - by default.

see:
http://msdn.microsoft.com/library/en-us/cpguide/html/cpconexposingnetframeworkcomponentstocom.asp

http://msdn.microsoft.com/library/en-us/vbcon/html/vbconCOMInteropInVisualBasicVisualC.asp

http://msdn.microsoft.com/library/en-us/vbcn7/html/vaconCOMInteroperability.asp


--
Armin

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[Herfried K. Wagner [MVP]]

How do you create an activeX dll (one that you can use in Microsoft
access, Excel, or other Windows applications)? I've tried to use the
Class Library, created the DLL, then used access to reference this dll,
but when I do I get the error: "Can't add a reference to the specified
file".

You will have to register it for COM interop. Basic sample:

<URL:http://dotnet.mvps.org/dotnet/samples/codingtechnique/downloads/MyComLib.zip>