Compiling Client app for COM+

Do I install the COM+ proxy on the client machine, reference it in the cient app project references and then compile it and make my distribution package or are there other issues involved???

when you refer ur com+ in your program, that will be an early binding issue and it is not recommended when creating com+. use late binding option using createobject(). of course there are also some issues like security, etc. set the proper roles and your ready to distribute.

Thanks for the reply. I didn't know that early binding was discouraged for a client/server application, in fact, I thought it is preferred!Can you go into alittle more detail why or point me another reference.

However, my specific question is, having built a client proxy and installing it on the client machine, do I reference this when compiling my client app for distribution??

i don't get the picture. are u using MTS??? is your application a three-tier application or simply client/server. make a more broad description of your problem.

You would use:

Dim myObj as Object

set myObj = CreateObject("MyCOM+.MyClass")




no need to set a reference, tho you'll lose Intellisense. Late binding is preferred in distributed apps for compatibility reasons. It is more loosely bound than early binding, so it is a little safer, albeit, slower.

Software is like sex, it's better when it's free - Linus Torvalds
Software is like sex, it's better when I get paid for it. - me

Here's the scoop: the app is a three tier distributed application to manage training records. A user interface written for administrators will be installed on client machines and access the middle(business tier) running on a COM+ application (configured component) as well as a Data Access Component running in an application as well in COM+

I want to distribute the User interface application, have it reference the proxy DLL exported from the Business Component. It all works fine on my development machine but when I install in on another clean test machine to simulate a client install I get an error starting the application # 458 variable uses an automation type not supported in VB. I first install the proxy DLL and then the user interface installation package. Start it up and get the above error.

Is your client a 9x or NT 4 sp3 machine? If so, you'll need to install DCOM on 9x and sp4 or greater on NT 4.
http://www.microsoft.com/com/tech/dcom.asp

If that doesn't solve it, try early binding on your client.

Software is like sex, it's better when it's free - Linus Torvalds
Software is like sex, it's better when I get paid for it. - me

The test machine has win98. DCOM was installed 1st and all objects use early, vTable binding. One curious thing was when the proxy was installed a tmp file, APL22.tmp, was in the ComPLUS Applications folder. Do you know what this file is for and is this normal?

I can't think of anything else to try???

I'm at a loss on this. I don't know if the tmp file is normal. Sorry.

Software is like sex, it's better when it's free - Linus Torvalds
Software is like sex, it's better when I get paid for it. - me