Running QuickBooks 2009 Premiere Contractor edition.
QuickBooks file hosted on a Windows 2003 Server
2 Client machines running XP Home.
Like many others, I am getting "unable to open the company file" message with error (-6190 -816) when another computer already has the file open.
My Company QBW file is hosted by a server with only the QuickBooks Database Server Manager running on the server.
I have two machines using the company file - both have Hosting set to OFF.
Both client machines can open the Company file independently, so I don't think there are any firewall/network issues.
But they both get the same error when the other machine already has the file open.
I have followed instructions in other threads; deleting the Transaction log file on the Server, deleting the ND file on the server, restarting the QuickBooksDB19 and QBFCMonitorService on the Server, and rebooting the Server.
Thanks for reading!