Which release is actually working with XP ?

Hello

I have a PC  with Windows XP (SP3)

First I have installed ADE 4.0 but at launch it gives "ADE has encountered an inexpected issue"

Then I have deleted ADE 4.0 and installed ADE 2.0

No probleme at launch time but :

1- I cannot associate acsm files with ADE2.0  (or there is some parameters for acs files wich I don't know ?

2- If I try to download an ebook and choose ADE2.0 as" Open with" the download seem to be working but after ADE2.0 is blocked

Thanks for any help

Patrick