MSTIsUsedBy is a program that tells you what particular process on the system is using a file. This function is extremely useful to solve the common situation when you want to delete a file and the operating system warns you that the file can’t be deleted.
There are a lot of programs that block more than one file while they are running. This is because they use these files to store and retrieve information during runtime. These files then become unaccessible to any process other than the one that blocked it. This means that no other program can modify or even access the file for reading. This also happens for example when you are writing in a word processor and obviously, the Operating System has to protect it from being altered or deleted, eliminating the possibility of losing your work and ensuring the stability of the system.
Another situation in which MSTIsUsedBy can be useful is when you have a suspicious file in your system that also can’t be deleted. Then with this utility you can know if there’s a process using it and identify possible threats.
The interface is extremely simple to use, you only have to drag and drop the file into the indicated area and the program will list you all the processes that are using the file.
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