[Venkatesh]

Hello,

I had enough trouble with the same problem early on (with PHP5b1). One thing that I had forgotten to do was to place libmysql.dll and libdb.dll in the Windows System (or system32, based on OS) directory.

Another thing to make sure is that php.ini (in the windows or winnt directory) has the MySQL extension enabled. By default, it is commented out.

Finally, try running Apache in console mode, as opposed to service mode. You will see dialogs when (and if) PHP can't find files or dlls.

Good luck