@PeterWolf - don't those solutions you mentioned limit the customizing you can do? Plus no workstation upgrades.
At the moment, the Sage 100 wksupdate program that comes with service packs can't even properly locate the existing workstation install it is supposed to upgrade.
Add in that Sage has never bothered to create upgrade code for the data entry files, and while it might not be ""never"", it will be at least two more CEOs from now.