Yes iTunes is a bad port of the Apple software to Windows. Just like Safari is a poor port from OS X to Windows as well.
Personally i would suggest Anapod. As Metal says. You can not fully use the 4GB of RAM. It is a limitation of all 32 Bit OS's.
anapod had a better album art feature anyway. I just had to enable it.
4 gig make s 32 bit slower. I get higher scores with with performance plus and 3 d mark in 2 gig dual channel mode than 4 gig dual channel mode