Error -6177, 0: "QuickBooks is attempting to open this Company file."

The following error appears when opening a company file:

QuickBooks is attempting to open this Company file. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . Before you can open the company file from your computer you must first open the company file on the computer where the company file is located. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . (-6177,0)

This issue has been resolved in the latest release for QuickBooks 2009. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . QuickBooks 2009 users, update your product to the latest release.

You might try rebooting the server and workstations before proceeding with other troubleshooting steps as this sometimes resolves this issue.

Errors that occur while setting up or working in multi-user mode can be time-consuming to diagnose and correct. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . To help investigate and resolve the error, Intuit recommends downloading the Network Diagnostic Tool, which analyzes whether your computer and network connection are set up properly for multi-user mode. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If the tool doesn't help you resolve the error, you can return to this article and try the solution described here.

These solutions require some technical ability and take about 15-35 minutes to resolve, depending on the speed of your computers and the number of users.

After trying each of these solutions, try opening the company file on the computer where the error occurred. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If it opens successfully, the issue is resolved. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If the error still occurs, proceed to the next solution.

Solution 1: Go to the computer that stores the company file and troubleshoot the server configuration.
(Time: approximately 10 minutes)

1. Close QuickBooks if it is running.
2. Delete the network company file (QuickBooks recreates it automatically):
   1. Open the folder that contains the QuickBooks company file.
   2. Locate a file with the same name as the company file and a .nd file extension, such as MyCompanyFile.qbw.nd.
   3. Right-click the .nd file and choose Delete.
3. Configure the QuickBooks Database Server Manager:
   1. Click the Start button and choose Programs > QuickBooks > QuickBooks Database Server Manager.
   2. Click the Scan Folders tab.
   3. Click the Add Folder button.
   4. Select the folder that contains QuickBooks company files and click OK. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If you don't know where files are stored, select the entire disk.
   5. (Optional) Click the Add Folder button again to add additional folders, and then click OK.
   6. Click the Scan button. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . The display will indicate which folders are being scanned.
   7. After the scan is complete, click Close.
4. Ensure the QBDataServiceUserXX user has full access to the folder where the company file is stored. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . For detailed instructions refer to:
   • Setting access permissions for QuickBooks in Microsoft Windows XP
   • Setting access permissions for QuickBooks in Microsoft Windows Vista
5. Try opening the company file on the computer where the error occurred. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If it opens successfully, the issue is resolved. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If the error still occurs, go to the next solution.

Solution 2: Update your program to the most current release on each workstation and on the server.
(Time: approximately 15 minutes per computer)

Note: It is important for each computer using the same company file to be on the same release of QuickBooks. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . To check the version and release of QuickBooks on any workstation, open QuickBooks and press the F2 key. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . The version and release appear in the upper left corner of the Product Information window.

1. Follow the instructions to update your program to the most current release on each workstation and on the server.
2. Try opening the company file on the computer where the error occurred. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If it opens successfully, the issue is resolved. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If the error still occurs, go to the next solution.

Solution 3: Turn off hosting on all workstations that do not store the company file.
(Time: approximately 2 minutes per computer)

1. Open QuickBooks on a computer that does not store the company file.
2. Choose File > Utilities.
   • If Stop Hosting Multi-User Access appears on the menu, click it and click Yes to confirm.
   • If Host Multi-User Access appears on the menu, stop and proceed to the next step.
3. Close QuickBooks.
4. Repeat steps 2 on all workstations that do not store the company file.
5. Try opening the company file on the computer where the error occurred. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If it opens successfully, the issue is resolved. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If the error still occurs, go to the next step.

Solution 4: If QuickBooks is installed on the server, toggle hosting off and on, and then open the company file using a local (not mapped) hard drive.
(Time: approximately 5 minutes)

1. Open QuickBooks on the server.
2. Choose File > Utilities > Stop Hosting Multi-User Access, and click Yes to confirm.
3. Close QuickBooks and reopen it.
4. Choose File > Utilities > Host Multi-User Access, and click Yes to confirm.
5. Open the company file:
   • QuickBooks 2007 or 2008: Choose File > Open or Restore Company
   • QuickBooks 2006: Choose File > Open Company
6. QuickBooks 2007 or 2008 only: Click Open a company file and click Next.
7. Click the Look in drop-down arrow and select a local hard drive (such as C: or D:), then browse to the folder that contains the company file.
8. Select the company file and open it according to your version of QuickBooks:
   • QuickBooks 2007 and 2008: Click Open.
   • QuickBooks 2006: Click Open file in multi-user mode and click Open.
9. (Optional) Close QuickBooks on the server.
10. Try opening the company file on the computer where the error occurred. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . If it opens successfully, the issue is resolved.

If this solution does not resolve the issue, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site. 6177 error, can't access open company file, backup error 2009, error company file in use when updating, company file lost, -6177, 0, problem opening company file, . You can also review other available QuickBooks support options for additional guidance.