Registration procedure fails when I install the package in Delphi 7. The message is: Sireg.Register raised Access violation... Read of address 00000008.
Compilation went without any problems.
By trial and error I found that the following line in sireg.pas causes the problem:
What version of TsiLang Components Suite do you use? Have you tried to delete all DCU files and make "build all" to be sure that you use correct sources?
Unfortunately, we cannot reproduce such behavior on our side. This looks like something is wrong on your side. May be some thirdparty packages installed or something else.