Deploying applications with references to COM components

[Dave]

What files need to be distributed when deploying an application with a COM component? For example, if I create a project with a reference to Windows Media Player (wmp.dll) a file called Interop.WMPLib.dll appears in my bin folder. Does only this need to be distributed or wmp.dll too?

[a_jam_sandwich]

windows media player will need to be installed on the computer running your software - wmp.dll will then be installed simply distributing this DLL will not do the trick

 

Andy

[divil]

And yes, you do need to distribute your Interop assembly.

[Dave]

Cheers guys

[neosven]

How do you distribute an assembly?

I have the same problem with interop.sqldmo.dll

This is a file to search all the available servers in your domain.

When I install my application on an other computer I always get an error that that dll is not registered or validated.

 

How can I solve this problem?

[divil]

You need to include the dll in your setup project so it gets installed on your user's system. Further, since it is a COM dll and requires registering, you need to mark it as such in your setup project. There is usually a per-file setting that you can change to "self register" or similar.

[neosven]

Thanks, I will try it again tomorrow at work. I already tried this, I'll give it another go.

The problem occurs on an NT 4 computer, but works on a 2000 computer.

Could there be another problem?

[divil]

I can't think of one - unless your dll in turn references another dll which needs to be present.