RPC Server busy Error on Win 9x clients

Dear,

We are working on a 3-tier Business Solution for one of our
client using Visual Basic 6.0, MTS 2.0 and SQL Server 7.0 technologies.

Development Environment:
------------------------
DataBase Server:
Win NT Server 4.0
Service Pack 6

Application Server:
Win NT Workstation 4.0
Service Pack 6

Clients:
Windows NT Workstation 4.0 with Service Pack 6
Windows 98 with Service Pack 1.0
Windows 95 with DCOM Version 1.3 for Win95

The application works well on clients running on Windows NT

Workstation.

We have an interesting problem when calling an object in MTS that has a
collection as a parameter of a method from Windows 9x clients.
The followig error occurs:
Error Number: -2147023173
Description : Automation Error. The RPC server is too busy to complete this operation.

Can u please help us.

with regards,
Krishna Prasad S