This is kind of stale, but it seems to have slipped under the radar for a lot of folks. Circa October 2019, Chris Pirih rebuilt SkiFree in response to some complaints about malware positives. One build uses Visual Studio 6.0 on Windows 2000, and the other uses Visual Studio 2019 on Windows 7. Unfortunately, these additional builds are not listed in the Download section of the Pirih's SkiFree page, but rather in the ANTIVIRUS WARNINGS section:
https://ski.ihoc.net/