ive used kazza,and kazza lite,,i call them pop up and stop up.
limewire works great for me,(shiity dial up connection)but ive learned that it needs a few things set to work good,
You must create your own Folders to Share and Save Files ,a folder you keep empty of files after you download them,or they will be listed as Shared and your bandwidth is used up,(you will see what i mean if u allow uploads)
which brings me to that,
go and set it so you have '0' slots '0' uploads, and nobody can upload a file untill you want them too,
for one it wont be in your share file
and two they wont have a slot to hook up too


people with good connections dont half to worry,only those with crappy dial up like mine need to set things like that ,LIMEWIRE is great,file sharing is great,id have no problem listing hundreds of songs to share if it wouldnt not for all practical purposes shut off any downloading for me,(uses up the 26.4 kbps i have)
anyway,thought id add that ,in case others wonder why they have such slow downloads,set it to 1 at a time,and its faster too,the rest will start as others finish

peace