All Programs does not display all installed programs

I am running XP Pro with SP3, when I click the All Programs tab an entire page of installed programs appears, it does not however display all programs that are installed on the machine. I am not sure if this is a display issue (no more room on the page to display additional installed programs) or something else. I have tried without success to "expand" the page in question, any suggestions greatly appreciated.

 

Greetings, toptechx6.

Not all programs create a Start Menu folder and/or icons when installed. Many programs even give you the option of not creating a Startup group in their installation setup pages - CCleaner and IrfanView come to mind.