You can give the same object more than one CLSID. You can register each CLSID in COM+ and instantiate the same physical binary multiple times. You will then have to modify the class factory to be able to recognize the new CLSIDs, but that shouldn't be too hard...

cheers,
jeff

-----Original Message-----
From: Alan Gamboa [mailto:AlanCCGSYSTEMS.COM]
Sent: Tuesday, June 12, 2001 11:46 AM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

thanks Alex, I'll check out his book...

FYI:

        Each department is its own entity, they have their own database.
This can easily be solved by using separate server machines and creating a
COM+ Server App on each machine. However, the IT department has allocated
one COM+ Server machine to my client, so now I'm trying to figure out how to
setup two departments on one machine using one COM+ Service Manager using
the "same" DLL, without significant code change.

thanks again.

Alan

-----Original Message-----
From: Alex Ivanoff [mailto:aivanoffINAME.COM]
Sent: Tuesday, June 12, 2001 2:14 PM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

In COM+ component can be assigned only to one application.
Why do you need a separate server application for each client? Isn't
library application good enough?
Anyway, I suggest you Tim Ewalds' book "Transactional COM+: Building
Scalable Applications".

Alex

-----Original Message-----
From: Distributed COM-Based Code [mailto:DCOMDISCUSS.MICROSOFT.COM] On
Behalf Of Alan Gamboa
Sent: Tuesday, June 12, 2001 13:50
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

Thanks, I understand the theory(I think), but I can't seem to set it up
in the COM+ Application Manager...I've created a "Library Package" and
dropped my DLL into it. Next I created a "Server Packcage" but I can't
seem to find a way to import the components from the Library.

Am I totally off base here? Do you know where I can find good
documentation of the proper procedures?

I really appreciate your help...

Alan

-----Original Message-----
From: Alex Ivanoff [mailto:aivanoffINAME.COM]
Sent: Tuesday, June 12, 2001 12:26 PM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

You only need to have one library application which can be used in any
number of server applications. For instance, you have two server apps
S1App and S2App and one library app Lib1. You can create instances of
classes from Lib1 either in S1App or S2App.

Alex

-----Original Message-----
From: Distributed COM-Based Code [mailto:DCOMDISCUSS.MICROSOFT.COM] On
Behalf Of Alan Gamboa
Sent: Tuesday, June 12, 2001 11:35
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

that sis not seem to work, I created 2 library applications and tried to
drop the DLL into both, but it came back with The object is already
registered...

-----Original Message-----
From: Alex Ivanoff [mailto:aivanoffINAME.COM]
Sent: Tuesday, June 12, 2001 11:12 AM
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Re: Multiple Clients/Databases one DLL

Put your DLL in a library application.

Alex

-----Original Message-----
From: Distributed COM-Based Code [mailto:DCOMDISCUSS.MICROSOFT.COM] On
Behalf Of Alan Gamboa
Sent: Tuesday, June 12, 2001 10:45
To: DCOMDISCUSS.MICROSOFT.COM
Subject: Multiple Clients/Databases one DLL

I have a DLL that I drop into COM+ in Win2k. It has an ITable interface
with a GetRec() method. Using IObjectConstruct, I can define the
connection string information for the component.

I have an ASP page and a C++ application on the front end which can get
to this object.

I have a client who has mutilple entities so they have separate
databases for each entity. For each entity, there is a separate COM+
application. The "API" are the same for both instances, so I want to
drop the same DLL into each COM+ application (server package). But it
seems that I have rename the coclass and recompile to use mutiple
instances of the "same" DLL. Is there a way around this?

any information is appreciated.

Alan Gamboa
CCG Systems, Inc.

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