I'd like to see option that allows to rename pendants & sun ring, shadow etc. (who needs it?) and normal/rare ring&necks too. Then it will be perfect renamer for me 
I hope there is letter number limit (especially for realms), we don't want 100x xcrash crying threads here 
Pendant renaming as "Item_original_name [Class]" It's already functioning as "Named Pendant"
If you mean also those rare rings to be included in somethin like:
+++++++Sun ring++++++ it can be done with no particular effort.
For naming, I found that the max char limit on name of items is 50 chars. 51 chars and client crashes (That's why several people got problems increasing True armor chests (Those are the ones with more frequent longest name in the whole itemtemplateall). This program already extend the name at the max based on original name so it wont ever produce a 51 char (Actually only possible cases are a max 50 chars or max 49 chars) so np with that

In fact, at every release as a plus in security, I use the program on my own gaming dir just to ensure I have an INI with all possible mods so if I don't have problems you wont have too

MUST BE RAN WITH ORIGINAL ITEMTEMPLATEALL.INI OR IT WILL CLOSE BEFORE SETTIN ALL ON FIRE
does this mean that when we DL the new version of the tool we need to replace the ini with original before using new tool?
Sadly, (but luckily just ATM) yes. Because of some of the renames. Already thinkin about some solution at this, but when u remove item's original name (Eg. for non elites) it's impossible to restore it. Whereas this is not a problem with rename (with a dot, or the symbol u choose, replacing another one) this can be a probelm for realms and uniques because you could get somethin like:
OBLDOOO-OBLDOOO-Blode Ring-OOOBLDO-OOOBLDO
Still, as mentioned before, looking for a decent solution
