Explains how to resolve errors H101, H202, H303, and H505 when opening a company file in multi-user mode.

It is sometimes necessary to uninstall and reinstall all other Intuit programs in the QuickBooks installation folder (as well as QuickBooks),  if QuickBooks does not function correctly after a reinstallation. This is referred to as a clean install.

This article describes why a connection to the company file may have been lost and how to troubleshoot a resolution.

Steps to resolve error 1321 by changing Windows folder permissions to allow install.

Update QuickBooks to the latest release and verify that multi-user access is configured correctly. Ensure that the QBDataServiceUser(XX) has approrpriate permissions in Windows.

Sequentially ordered list of articles to help you install and configure QuickBooks in a multi-user or network environment.

Steps for resolving error -6190, -83 error, which can happen when more than one computer is set to host the same company file.

You can set access permissions for QuickBooks database users in Windows XP.