EaseFilter File System Monitor Filter Driver SDK

EaseFilterOS & File System ToolsWindows DLL
Version 5.8.x (Jul 19, 2026)

Monitor and control file system activities with detailed tracking.

  • Provides comprehensive file monitoring and access control features.
  • Supports transparent file encryption and process/registry monitoring.
  • Includes SDK components for Windows file system filter driver development.
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File I/O activities monitor.
EaseFilter File System Monitor Filter Driver SDK offers a comprehensive framework for developing Windows file system filter drivers that monitor, control, and protect file and registry operations. It enables detailed tracking of file I/O, including user and process information, supports file encryption, and facilitates process and registry monitoring to enhance system security and auditing capabilities.

Real-Time File System Monitoring

Continuously monitors file system activities such as file creation, modification, deletion, renaming, read and write operations, capturing detailed event data including user and process information for each file event.

File Access Control Capabilities

Allows interception and modification or blocking of file system requests based on customizable rules, enabling enforcement of security policies, prevention of unauthorized access, and support for data protection.

Transparent File Encryption

Provides on-the-fly encryption and decryption of files at the file system level, supporting strong cryptographic algorithms like AES with flexible key lengths, allowing only authorized users and processes to access decrypted content.

Process and Registry Monitoring

Monitors and controls Windows process and registry activities, including notifications on creation and termination of processes or threads, and blocking or auditing registry changes to protect system configurations.

Detailed File I/O Event Tracking

Tracks granular file I/O events such as file open options, read/write offsets and lengths, security attribute changes, and directory browsing with comprehensive callback data for in-depth auditing and analysis.

User-Mode API with Multi-Language Support

Includes user-mode DLLs and APIs accessible from C++, C#, and other languages, simplifying development for different programming environments without requiring deep kernel-mode expertise.

Support for Standard and Isolation Filter Driver Models

Enables both standard monitoring filters and advanced isolation filters that separate file data views from underlying storage, useful for scenarios like transparent encryption or virtual cloud storage presentation.

Integration with Windows File System Minifilter Framework

Built on Microsoft’s Minifilter technology, ensuring compatibility with Windows operating system internals, robust handling of file system operations, and support across multiple Windows versions and patches.

Extensive Configuration and Rule Management

Offers flexible configuration for filter types, connection timeouts, protected process IDs, volume control flags, and detailed filter rules based on file paths, access rights, and event types to tailor monitoring and control precisely to requirements.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • Windows DLL

IDE Support

  • Visual Studio