Post details of freeware that are found to be not portable here. Posts in the submissions forum relating to freeware found to be not portable should also be moved here.
An easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
With Hugin you can assemble a mosaic of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.
Saves settings to HKCU\software\hugin.
Tested version Hugin_2011.2.0_32bit_Windows.7z.
extracting the 2016.2 MSI creates a separate System64 folder with a bunch of API DLLs. Moving those into the \bin directory allows the program to start; otherwise an error pops up. Hopefully this doesn't break any functionality.