Problem Description:

How can I use multiple QuickBooks

Solution:

You can use multiple QuickBooks of the same region and same version year on the same machine. But for the best configuration of QuickBooks, Please contact Intuit to take help.

Please note:

You may unable to setup auto-login when you use multiple QuickBooks.

Because QODBC uses QuickBooks SDK to work with QuickBooks, and QODBC /QuickBooks SDK is not able to judge from company file to determine which edition of QuickBooks to start.

The alternate solution is to keep QuickBooks running so that QODBC / QuickBooks SDK need not load new QuickBooks and can connect to existing instance.