Two computer questions

[SPAGo 98]

1) In properties, what's the difference between Size and Size on Disk? (Rather, what does Size on Disk mean?)

2) In my Outlook Express, when I go to Accounts, there are several things listed under Directory Service. I have no idea what these are, where they came from, etc. Should I just let them be, or delete them, or what? What are they?

Thanks!

 

[helenabear]

1) The first is a guestimation of sorts. The size of disk is the actual size of it. For instance if you have a 10 Gig hard drive that is the size. But size of disk would be that it is really 10240 MB. So size of disk is more accurate (if you do the math on it).

2)It's a directory service of sorts... they really aren't worth keeping so you can delete them.