^^
For stdio precomp, you can use this version:
https://fileforums.com/showthread.php?t=105410
CLS-SREP by ProFrager is still the best cls-srep for decompression. Use srep.exe for compression. 3.93b is alright for most data.
pzlib is obsolete, use xtool.
lolz v22c4b is the latest lolz version.
Inno Setup 6 does work with isdone, yes.