PHP is really slow on iis server

[matte]

hey,

i am creating my own cms to use on some websites.  I need it to be able to work on both iis and apache.  Everything works great on apache and linux and mysql but when i move it over to iis and windows 2000 and MSsql it is way slower.  On apache and linux the page will load in less than a sec.  On iis it will either timeout or take 20 - 30 seconds to load the page. 

i have been beating my head on the wall trying to figure out what could cause this!! Does anyone have any idea?  To connect to the MsSQL database i am using odbc.  I have tried mssql_connect() but it isn't any faster. 

Please any ideas are appreciated!