The "31" is almost certainly a mislabeled or malicious file name from an untrustworthy third-party download site. Common possibilities:
Do not download any file explicitly named "Sensiva Mouse Software For Windows 7 Free 31" from random sites (e.g., Soft32, Brothersoft, oldversion.com knockoffs). These are high-risk. Sensiva Mouse Software For Windows 7 Free 31
After installation, double-click the Sensiva tray icon to open the "Gesture Settings" window. This interface looks dated (yellow background, basic fonts), but it is incredibly powerful. The "31" is almost certainly a mislabeled or
Once you have the file (typically named sensiva32_31.exe or similar), follow these steps: Do not download any file explicitly named "Sensiva
Software versioning can be confusing. Version 3.1 (often referred to as "31" in legacy download archives) is the golden build. It was the last version released that did not require a license key for basic functionality, yet it offered full compatibility with Windows 7 (32-bit and 64-bit). It has a tiny memory footprint (under 2MB of RAM) and zero bloatware.