The File Lock add-in allows you to find which process is locking a particular file.
For example: you are working with SharePoint & encountered a check-in problem. The error message says file is locked.
You can use Squadron to find which process is locking the file.
Open Squadron & use the System add-in from the left pane.
Enter the full file path in the text box, over the bottom.
Click the Find icon to start search.
You will be prompted with the result.
You can terminate the application to release the file lock.
Additional to File Lock finder, the System add-in contains the following panes too:
Here you can find the list of processes currently running.
Here you can find the list of services currently running.
Squadron is a Free Tool & downloadable from following location: