How to define install path or Windows

How do I change the default install path (C:\PHP4) on Windows? I first fixed the config details (pear config set ***, etc.), and then fixed the path references in the *.reg files. Now, I have just spent over an hour going through the [PEAR] registry files, changing C:\PHP4 to F:\php, and then going through again correcting the length (How unfriendly is this?). After this, I found I had made errors in two files (DB and PEAR), and so I reinstalled these, using pear install DB pear install PEAR After this, I found that the config details had been reset to C:\PHP4, and my list of installed packages had shrunk to just DB and PEAR. I had lost an hour's work. It is this sort of thing that gives systems a bad name. I don't particularly want PEAR, but it seems I must have it for Horde. It has taken me three weeks to get it installed on Windows. I really don't want it on my C: drive - this is small. Why is there so much hard-coding of paths in this system? Why can I not easily move directories from drive to drive? - Roger -