PHP Warning: PHP Startup: Unable to load dynamic library 'C:\PHP\ext\php_mssql.dll' - The specified module could not be found. in Unknown on line 0

I am trying to install PHP on windows 2003 and IIS
server has MSSQL and MYSQL running side by side.
PHP seem to have installed fine but i keep getting this error

PHP Warning: PHP Startup: Unable to load dynamic library 'C:\PHP\ext\php_mssql.dll' - The specified module could not be found. in Unknown on line 0

i tried copying libmysql.dll to the windows /  windows/system32 and windows/system directory

still getting the same error !
Raul77Asked:
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BrianMMCommented:
Sometimes happens if using the installer.. try downloading the php zip version, just unzip over the top of your php install.
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