[1] An updated version of Tweak UI was included on the installation disc for Windows 98.

According to Chen, this was deemed a "disaster" because it resulted in additional work for Microsoft's product-support teams when diagnosing problems.

[2] With the release of Windows XP, the Tweak UI applet was retooled and re-released on Microsoft's website as a separate executable, TweakUI.exe.

Chen also wrote an updated Windows Vista version of the utility, but it was not released as it violated the policy of not making available unsupported software.

[3] An unofficial 64-bit version of Tweak UI was created by NeoSmart Technologies for Windows XP Professional x64 Edition.