I am completely new to php, and MySQL, and am following a book by Kevin Yang. I have successfully installed mysql on PC and its working. I have installed php, and run through configuring it on IIS in Vista, but I keep getting the same error all the time when trying to connect to locahost.

HTTP Error 500.0 - Internal Server Error
Description: Calling LoadLibraryEx on ISAPI filter "C:\php\php5isapi.dll" failed

Error Code: 0x80070005

Notification: Unknown

Module: IIS Web Core

Requested URL: it wont allow me to post it here but its 127 0 0 1 80

Physical Path: C:

Logon User: Not yet determined

Logon Method: Not yet determined

Handler: StaticFile

It is driving me nuts now aafter trying about 12 times to get this right.

Please can somebody help.