WinOLS Checksum Plugins - ECU Checksum Correction Tool 2025-08-26

New release thread for WinOLS 4.51 (VMWare) - Full Suite with 62 Checksum Plugins: discuss, share feedback, and get help.

WinOLS 4.51 (VMWare) - Full Suite with 62 Checksum Plugins​

The updated WinOLS 4.51 in a ready-to-run VMWare machine, loaded with 62 essential checksum plugins.

The Professional Standard, Updated: WinOLS 4.51 on a Virtual Platform​

---

This package features an updated version of the legendary ECU remapping software, WinOLS 4.51. To ensure maximum stability and ease of use, it is delivered as a pre-installed and fully activated VMWare virtual machine. The core value of this suite lies in the comprehensive library of 62 essential checksum plugins, providing a complete, ready-to-work...

Click to expand...

Click to expand...

Frequently Asked Questions​

Which Windows version is recommended?
For maximum stability during ECU flashing and diagnostics, a clean installation of Windows 10 (64-bit) is recommended.
Is it compatible with J2534 PassThru?
Most modern software versions support standard J2534 interfaces like Scanmatik 2 Pro, OpenPort 2.0, and specific VCI adapters.

What's inside:

• Overview & screenshots
• Version history and compatibility
• Download link and setup notes

View full details and download — WinOLS 4.51 (VMWare) - Full Suite with 62 Checksum Plugins