The most common reason this message can appear is if you have copied your data from one computer to another recently. It can also happen if the program wasn’t closed correctly.

Solution 1: Reset Lock File

  • Click on menu Tools > Maintenance > Reset Lock File

Solution 2: Remove the lock file manually

If Solution 1 doesn’t work, try this:

  1. Close down the program first.
  2. Start the Windows explorer and browse to the folder where the database is located.
  3. In that folder, find the file that has the same name as the database, but with an extension ending in “lck” (So e.g. “muclck” for a Music Collector database)
  4. The file, ending in “LCK” can be deleted. (if you’re not sure, contact us first!!)
  5. Now start up the program again, the warning message should no longer come up.

The other reason the warning can come up is if are trying to open the database from more than one computer (concurrently) using one and the same license key. This is not allowed, and you will in this case require additional licenses which you can purchase via our online shop.

Need more help with this?
Don’t hesitate to contact us here.

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