Based on the 2012 Mercury Performance System (64-bit support).
Technically, Adobe never released an official portable version of Illustrator CS6. Any "portable" version you find online has been heavily modified by third-party "repackers" (teams like PortableAppZ, JooSoft, or BreW).
CS6 works perfectly fine on Windows 11 so long as you install only the components that do not include the PxHIpa64. How to Use the Shape Builder Tool in Illustrator (Tutorial)
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