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New Features Introduction Setting up your company file Advanced setup Banking Sales Purchases Paying your employees Billing for time Inventory Lists Transactions International transactions Reports Forms Contact management Financial control End-of-period procedures
Month-end procedures Starting a new fiscal year Starting a new payroll year Preparing 1099 and 1096 forms
Managing user accounts and company files Importing and exporting data Networking company files Glossary Index

When a company file is open, a temporary file called a lock file is created in the folder where the company file is stored. This file, called Lock000*.flk, keeps track of who is using the company file. When you log out of the company file, the lock file is deleted automatically.
note : Lock file name
The file is named Lock????.flk, where???? stands for a number from 0001 to 0010. If there is more than one company file in the same folder, the number allows your software to create a different named lock file for each company file.
Sometimes, however, the lock file is not deleted. This can happen if your computer crashes or an error causes your company file to close unexpectedly. Lock files can accumulate in the company file folder, resulting in error messages appearing when you try to access your company file again.
To resolve these error messages, you must exit your software, open the folder that contains the company file and delete any lock files that it contains. You should then be able to open your company file without an error.

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