Uncommon software (VMs, Tools, etc.)

SPICE Guest Tools 0.164.3 (Latest version doesn't seem to work on older Windows versions, this one somewhat successfully worked on Server 2008 and worked completely fine on FLP)
ISCS: macOS Tahoe Solarium Disabler and depending on version a Launchpad reactivator (by yours truly)

ISCS is software under the Unlicense.