Active Directory & Java SDK

Hello fellow-LDAPers,

I hope there are some Active Directory gurus out there that can help me 
answer 2 questions.  I'm developing a java ldap client that pulls data 
from Active Directory (Windows Small Business Server 2003) using Java 
SDK 4.17.

1. How do I increase the 1000 entry limit per search?  After 1000 I get 
   (4) SIZE_LIMIT_EXCEEDED exception.  I tried upping the max results on 
LDAPSearchConstraints without any luck.

2. How do I get a count of all entries under a particular branch? For 
example, I need to know total number of users before pulling all of them 
that reside under cn=Users.  In non-AD world, I was able to determine 
that by appending "-s base "objectclass=*" numsubordinates" to my search 
query.


Thanks!

-Dennis