This is a proprietary compressed archive format. To access the internal files, you must use a utility like WinRAR or 7-Zip. Typical Use Cases Files with this naming convention are frequently used for:
The .sys extension denotes a Windows System File , which often acts as a device driver that allows the operating system to communicate directly with hardware. Download 858 sys x86 rar
This indicates the driver is built for 32-bit systems . While these can sometimes run on 64-bit systems, they are specifically optimized for older or legacy hardware configurations. This is a proprietary compressed archive format