Hi.
I am trying to install 5.2.2 in BCB 5 Pro. SP1 but when I build the package i get "[Pascal Fatal Error] pasall.tmp(4): Unit siDialog was compiled with a different version of siComp.TsiCustomLang" error in pasall.tmp. 5.2 installs just fine. I seem to remember that the first error message produced by 5.2.2, before trying with 5.2, was about a missing DCU file but I cant reproduce that anymore, the above error is always shown now.
This looks like there are left some OLD DCU files on your drive from previous version and BCB5 doesn't detect that it needs to re-compile new PAS files. So just delete all DCU, HPP and OBJ files from TsiLang folder and re-build the package.
You need to adjust paths to sources in the project files "TsiLang_CB5.BPK"
and "TsiLang_CB5.cpp". Please, remove from the both files the string "..\SiLang_CB5", and the recompile the project. Or you can just download the archive from our site.