I included both the SaveSetting(VBA) and
GetSetting(VBA) in my Excel Application.

Have you or anybody tried anything w/"Virtual Machine Software" ?
I understand VMWare has several really good "virtualization" software
that will allow you do on a single computer, to test applications with
multiple operating systems; each one having a virtual machine.

I think what you can do with VMWare's Workstation 5.5
and with VMWare's Player, is to configure your computer
to not only have WINXP as the Host OS. You can also
have VMWare Sever as a virtual machine.
Which means, the application  from the WINXP
virtual machine can communicate with
2005 MS SQL Server OS via (queries) in its own
virtual machine.

---( VMWare Workstation 5.5 )---
http://www.vmware.com/products/ws/
---( VMWare Server )---
http://www.vmware.com/products/server/
---( VMWare Player )---
http://www.vmware.com/products/player/