@ Stiebler
Thank you for your reply. I will do as told!
If I do all that and both H.sie v16B1 patch and the addon are working , can I copy the whole data folder of my current installation to the new or it will cause another CTD?
I hate reinstalling all those things manually once again!

(The H.sie V16B1 patch is working properly for every option I have selected with this list of mods.)
@ Anvar1061
Thank you but, 4 GB memory in 32bit XP OS is useless.