It has been demonstrated that many long term software bugs are hidden in mistakes that can be roughly catagorized as errors of units of measure. This includes implicit kinds of units more subtle than merely, feet versus yards or, milliseconds versus fortnights. Visual StrongType can be used to weed out some of those last bugs that have been hiding for years, not noticed just because the answers are remotely plausible. Then you will have more confidence in the results after you have ported the legacy code to a new platform.
Free Trial Try the free version first.
If you have a small amout of code to quality check, the 21 days may be all you need.