Troubleshoot and resolve error -6177, 0,  This issue has been resolved in the latest QuickBooks release. Either follow the provided link to download the latest release, or use the manual troubleshooting steps to fix the problem.

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

Troubleshooting internet connection issues, firewall settings, and having mulitple instances of QuickBooks installed on the computer.

Content details configuring XP and Vista firewalls to permit Point of Sale functions.

Troubleshoot and fix the problem where you can't open a multiuser company file but others are able to open it normally.

Step-by-step instructions to install QuickBooks for Windows from a download file.

This article explains why the Automated Password Reset Tool may not be work and gives instructions for solving the issue.