The previously supported "1.3.21" was really a misidentified 1.3.24.
This is mostly based on the Inno Setup changelog for version 1.3:
http://www.jrsoftware.org/files/is1.3-whatsnew.htm
Only installers for the following versions were available to be tested:
- 1.3.3
- 1.3.9
- 1.3.10
- 1.3.21
- Remove configure-time endianness check
(replaced by run-time check to be optimized out by the compiler)
- Move loading functions into the util namespace
- Only keep the setup header entries we actually need