How to find out what processes have folder or file locked?

.net-3.5 filesystems filelock
CodeMonkey1313 picture CodeMonkey1313 · Jul 5, 2009 · Viewed 15.3k times · Source

How do you go about querying running processes to find out what folders or files they have locked? (i.e. you go to eject a drive and you're told that it can't be ejected because it's in use)

I'd like to either get an "off the shelf" download, or write a .NET 3.5 app to do this (primarily a Windows question).

Answer

Brian Agnew picture Brian Agnew · Jul 5, 2009

Process Explorer will show you this. Ctrl-F will let you search for a file and list the process(es) that have that file open/locked. You can then close that handle using Process Explorer.

There's also a command line utility called oh.exe available for download. See here for more details

Related questions

LINQ query on a DataTable

I'm trying to perform a LINQ query on a DataTable object and bizarrely I am finding that performing such queries on DataTables is not straightforward. For example: var results = from myRow in myDataTable where results.Field("RowNo") == 1 select results; This …

Read More
LINQ's Distinct() on a particular property

I am playing with LINQ to learn about it, but I can't figure out how to use Distinct when I do not have a simple list (a simple list of integers is pretty easy to do, this is not the …

Read More
Creating a byte array from a stream

What is the prefered method for creating a byte array from an input stream? Here is my current solution with .NET 3.5. Stream s; byte[] b; using (BinaryReader br = new BinaryReader(s)) { b = br.ReadBytes((int)s.Length); } Is it still …

Read More