OpenFilesMonitor

OpenFilesMonitor is a Windows WPF utility for system administrators who need to view SMB open files on Windows file servers and optionally close open file handles.

Why use it?

Windows file servers often accumulate locked files from disconnected users, crashed applications, stale sessions, or long-running processes. OpenFilesMonitor gives admins a simple GUI for checking open SMB files across configured servers without jumping between multiple MMC consoles or command-line tools.

Features

• View open SMB files on Windows file servers
• Track which user/session has a file open
• Close selected open file handles when needed
• Store server profiles locally
• Protect stored passwords using Windows DPAPI CurrentUser encryption
• Built with C# / WPF / .NET 8 for Windows

Download

Download the latest release from the Releases page.

Requirements

• Windows 10/11 or Windows Server
• .NET 8 Desktop Runtime, unless using a self-contained build
• Appropriate permissions on the target file server

Quick start

1. Download the latest release.
2. Extract the ZIP.
3. Run OpenFilesMonitor.exe.
4. Add one or more Windows file servers.
5. Refresh the open files list.
6. Optionally close selected handles.

Security notes

Server definitions are stored in:

%LOCALAPPDATA%\OpenFilesMonitor\servers.json

Passwords are encrypted using Windows DPAPI CurrentUser scope and are not portable between Windows users or machines.

Build from source

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