COM+ object activation in a different partition

Question

I had created a COM+ domain partition then mapped it to a Windows 2008 server machine and imported a COM+ application into it.

I tried using the following C# code to activate an object from that specific partition on the server remotely:

//partition guid
Guid guidMyPartition = new Guid("41E90F3E-56C1-4633-81C3-6E8BAC8BDD70");
//parition moniker
string uri= "partition:{" + guidMyPartition + "}/new:MyObject";
Type t = Type.GetTypeFromProgID("MyObject", "MyServer");
MyObject obj = (MyObject)Activator.GetObject(t, uri);

But I get this exception:

Cannot create channel sink to connect to URL 'partition:{41e90f3e-56c1-4633-81c3-6e8bac8bdd70}/new:MyObject'. An appropriate channel has probably not been registered.

Does anybody know how such an activation can be accomplished?

Are you trying to activating a native (in the sense not .NET) COM+ component or we're talking of a ServicedComponent (written for CLR even if published using COM+ infrastructure)? — gsscoder, Jan 09 '13 at 12:02
Until you give this detail. You can refer to this other question: http://stackoverflow.com/questions/12637878/how-can-i-instantiate-a-com-class-interface-generically and also to Marshal.BindToMoniker MSDN doc (http://msdn.microsoft.com/en-us/library/system.runtime.interopservices.marshal.bindtomoniker.aspx). — gsscoder, Jan 09 '13 at 12:09
Just to be sure. You can try to run your code with higher privileges (as Administrator), if it works maybe that you're running with too lower privileges. — gsscoder, Jan 20 '13 at 10:41
did you grant enough rights for the COM+ app in Component Services? — Adi, Feb 02 '13 at 19:43
Have you tried to create an instance of the object? http://stackoverflow.com/questions/485000/calling-a-remote-com-servicedcomponent-from-a-c-sharp-client — HaniGamal, Feb 18 '13 at 02:31
Sorry guys to not be responsive with your suggestions since I went towards a totally different approach. The idea behind the need of many different COM+ partitions was to enable multiple server configurations like: database, security and so the client decides what configuration profile he needs by selecting the proper server, the solution I took was sending the configurations profile identity across the communication channel from the client to server with each call silently, the server intercept it and take the right route. — Khaled Saleh, Jul 22 '13 at 20:55

score 1 · Answer 1 · edited Mar 12 '13 at 16:51

Make sure your Com is public and visible. To do this, add these tags to your Com class:

[ClassInterface(ClassInterfaceType.AutoDual)]
[Guid("41E90F3E-56C1-4633-81C3-6E8BAC8BDD70")]
[ProgId("..........")]
[ComVisible(true)] 
public class MyCom
{

Make sure your COM has been registered. You can do this using the command line:
```
C:\WINDOWS\Microsoft.Net\Framework\v4.0.30319\regasm "C:\.......\xxx.dll"
```

COM+ object activation in a different partition

1 Answers1

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