Installing obsolete software ( .exe ) from third-party sites poses a high risk of malware. Additionally, running this version on Windows 10/11 may cause severe stability issues.

MaxSea Plaisance v10 is legacy navigation software that was released in the mid-2000s. It is designed for older operating systems and does not support modern charting standards, AIS, or advanced hardware connectivity available in 2026.

Consider upgrading to modern alternatives like TimeZero (TZ) Navigator , which is the successor to MaxSea, offering modern charting, high-resolution bathymetry, and full AIS support.

Are you trying to run this on an older computer (e.g., XP/Win7), or are you trying to find a solution for a modern Windows 10/11 system? Knowing this will help me suggest the best path forward.

If you are maintaining an older system, official support, patches, or secure downloads for Version 10 are no longer provided by TimeZero.