I've got a custom with a particular problem. Obviously everyone wants to have stuff free.. or as cheap as possible... the problem is, most of all the software packages out there are intended for use by large businesses with dozen if not hundreds of employees (and of course a high price tag) The customer I've got wants to be able to something like one note.... combined with the spreadsheets of excel, and the addition of a basic inventory/order/job assignment type of system into one that allows multiple machines to access the same file open and update it on the fly in realtime without requiring other machines to close and re-open the file. This would be similar to how say some accounting programs allow multiuser support. One that comes to mind is QuickBooks that has "mutli-user" mode which then relies on either a single machine or a dedicated server for the source file that allows multiple computers to process transactions or allow book keepers/accounts to add and change things without kicking everyone else off the system. A bit of googling really turned up nothing. Add in the fact that majority of the "potential" solutions are online based (cloud) which "could" work, but none of them seem to allow this ability. I figured i'd post this question here just in case someone might have an idea. The major issue is the intended use, Almost all of the available software applies to one specific designation of use, and completely negates or doesn't include the other portions. I have no doubts there is anything out there that'll do it realiably let alone have the features required. They figured if Microsoft's One Note has the ability to update in realtime with multiuser support over a network... they'd probably use that initially until they found something better... but i'm not finding anything.