It looks like you had this question posted twice, I answered the other one and I'll copy it here:
Well, one thing you could do is to diasable any applications that browse the internet (ie. internet explorer). How you would do this is in the registry. Run regedit.exe and go to this key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVers ion\Policies\Explorer
Make a new DWORD value called "RestrictRun" with a value of 1 (enabled, dont allow applications) or 0 (disable, allow applications)
Then, under:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVers ion\Policies\Explorer\RestrictRun
Make string s for each of the programs you want to disable, for example:
1 REG_SZ "iexplore.exe"
2 REG_SZ "netscape.exe"
3 REG_SZ "notepad.exe"
4 REG_SZ "wordpad.exe"
etc.
-Matt Snead
p.s. here is where I got this information if I wasn't too clear:
http://registry.winguides.com/display.php/113/