How to compare version numbers in Powershell? [closed]

Question

I'm trying to sort version numbers in an array, starting with the highest and descending to the lowest.

An example of the version numbers I'm trying to sort would be W88.1.1.

All I've really tried is:

$a = "W99.2.9", "W99.2.8", "W99.2.3", "W99.2.7" | Sort-Object -Descending

Answer 1

The [System.Version] object type cast should do the trick:

PS  >  [System.Version]"2.7.0.19530" -gt [System.Version]"3.0.0.4080"
False
PS  >  [System.Version]"2.7.0.19530" -lt  [System.Version]"3.0.0.4080"
True