Installation issue under Windows XP and PDFCreator v2.1.2

I wrote the following post because as written in the site, PDFCreater can be installed under WinXP. Well, it seems a “sort of” should be added there…

Trying to install PDFCreator 2.1.2 under WIndows XP SP3, i receive the following message:

Internal error: Failed to expand shell folder constant "localappdata"

After i created this envvar to point to the proper folder, the installation proceeded normally but at some point near the end, the following message appeared ~10 times:

Internal error: Failed to expand “group” constant

The installation proceeded and after a while, a crash occured in PDFArchitect’s installation and then a prompt to restart the PC.