First, it'd be nice if I could convert the Quickbooks database into another format, but if that's not possible, I'd really just like any other alternatives that are better than that piece of crap I have to deal with. Here's the situation: We use Quickbooks Pro 2001 at work and have a very large database, over 100MB. It takes computers over the network in multi-user mode to open and execute operations about half a minute whereas it runs instantly in single-user mode. (This was tested with only two users connected, but usually there are at least five computers connected). I upgraded the network from 100Mbit to 1Gbit to see if it was a network problem, but it was still slow. I monitored the transfer speed for files and I was getting over 200Mbit through Windows shares, but Quickbooks only used 10Mbit (for a 100MB file, this takes forever). I've tried just about everything and am now giving up hope for this worthless piece of software. Cliffnotes: What are some good alternatives to Quickbooks for large databases for multiple users?