So, I was looking for the latest Windows build of JpegOptim for testing GFNKraken and ultimately had to gave up on it.
I was able to successfully build one which includes some changes to fix an issue with
stdio and the source can be found here: https://github.com/sikhlana/jpegoptim.
You can download my build from: https://www.dropbox.com/s/ih1zdf021z2ns9t/jpegoptim.zip?dl=0
This archive includes the
jpegoptim.exe executable and the
Use at your own risk ;)
EDIT: Looks like the original author updated the source code him(her?)self so I recommend using that one.