PHP3, Apache & Win98 Problem

I have encountered one strange problem with PHP3 and Apache which run under Win98system. I have one Php file written as follows: <HTML> <FORM> Please type your name here:<BR> <INPUT TYPE=TEXT NAME=username<BR><BR> <INPUT TYPE=SUBMIT VALUE="Submit data"> </FORM> <BR><BR> You type: <? echo($username); ?> </HTML> The output in browser showed results except for the contents of <? and ?>. I'm using Internet Explorer 5.0 for this purpose. The settings in httpd.conf file have been configured accordingly the normal settings as found in manual. Some of these settings are as follow: ScriptAlias /php3/ "C:\Program Files\PHP\" AddType application/x-httpd-php3 .php3 AddType application/x-httpd-php3-source .phps AddType applicaton/x-httpd-php3 .phtml Action application/x-httpd-php3 /php3/php.exe The php3.ini was installed in c:\win98 directory. Php3 programs in c:\Program Files\Php. Does anyone face this similar problem before ? Have you got it solved ? Please let me know the solution if available. I need your need indeed. Thank you very much Calvin Chang