out of proc COM server unable to createobject from asp.net webservice

I have the following setup

WinXP SP2, IIS 5.1

I have an

Asp.net website(a) calling -> Asp.net Webservice(b) calling a function Creating a COM object in an already running EXE server(c).

This COM server works fine with local clients.

The CreateObject fails even when run on a machine when COM server is registered as a user(adminuser) with all privileges on this machine and asp.n开发者_JAVA技巧et is running as ASPNET.

I get Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE))

If I run the asp.net as a logged in user(adminuser) by chainging "processmodel" in the machine.config with username="adminuser".... then I can make this work

So browser(adminuser)->website(a)->Webservice(b)->CreateObject(c) succeeds

From a different machine, a browser connecting as the same logged in user(adminsuser) fails with Server execution failure.

So browser(adminuser)->website(a)->Webservice(b)->CreateObject(c) fails

If asp.net runs as SYSTEM then I get Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)) even on the local machine.

I am not able to get this to work beyond my local machine. Any insights into settings? Has anyone tried this?

Thanks