Here's a very simple way to simply NOT allow the games and other software run. Simply add or remove EXE files to the $disallowapps line. (Thanks to RADIMUS some time ago for this one!)

;? " Disable Microsoft Games and Search Engines"
$=writevalue('HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer','DisallowRun',1,REG_DWORD)
$disallowapps=split('sol.exe freecell.exe winmine.exe pinball.exe spider.exe GoogleDesktop.exe YahooDesktopSearch.exe WindowsSearch.exe WindowsSearchfilter.exe WindowsSearchIndexer.exe WindowsSearchSafeFilter.exe msnmusic.exe quicktimeplayer.exe')
for $loop = 0 to ubound($disallowapps)
$=writevalue('HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun',$loop +1, $disallowapps[$loop],REG_SZ)
next