Over the years Jase issued updates to FishSim2 in order to overcome changes in the various Windows versions as well as closing a few loopholes that might have been exploited.
Below are various downloads to get you up to date plus some useful tools.
Please use these carefully & respect the creator ©Jason Spooner
Fishing Simulator 2 is now Freeware (read the EULA)
Don't forget to DONATE to show your appreciation