2 martie 2012 01:53We would like to build an addon which protects children from pornography. So when parents install our addon, we don't want kids uninstalling/deleting the addon without their parents knowledge at least. Is it possible to prohibit users from uninstalling/disabling an addon without the use of a password? Thanks.
2 martie 2012 02:57
Corporate networks can use Group Policy, consumer versions of Vista and Windows include Parental Controls. Net Nanny has long since died.
3 martie 2012 00:09
I realise that Windows comes with parental controls, but they are very limited and inaccurate. If you care to learn more, you can read a post I published today http://paulfwalsh.com/why-google-safesearch-isnt-the-answer-for-family-safety/ Google, Apple and all other major players have some kind of parental control - but none of them are effective. We have indexed more than half a billion pages of pornography that we can use to protect kids - check out http://metasurf.net - we have a FF addon that does everything we want - just need to update it so it's not possible to disable the addon without the use of the password.
Microsoft Internet Explore has been using PICS since the mid 90’s - the old W3C standard that was replaced by our method of labeling content in 2009. It’s even technically impossible to label a site with PICS today and yet, IE still uses it as part of Content Advisor. And it is estimated that there are fewer than 15,000 websites with PICS.
We want to build the addon - particularly because the UK Government would like to ship it across every school in the UK. This isn't a revenue generator for us - it's a free addon that we want to ship.
So, do you know if it's possible to stop users from disabling/removing an addon without the use of a password?
3 martie 2012 03:42
The first step is obvously disallowing uninstallation of the add-on by providing children with Windows accounts that don't have administrative privilegs. This + the fact that you cannot write to %ProgramFiles% unless you are an admin should secure the PC enough to prevent this attempt. The second thing to do would be to eliminate the "IE without add-ons" shortcut from the Start Menu, Accessories, System Tools folder.
I can't remember right now if IE allows the user to disable add-ons via the Add-on manager on a per-user basis (I think it does), so this is probably going to be the toughest. As suggested above, you should investigate if there are any policies that you can apply to the PC to disallow this behavior. If there are no policies, then all that remains would be hacks, I guess, like a CBT hook that monitors dialog box creation in order to disallow the Add-on manager. This is of course, the very last and DESPERATE measure. Only consider if anything else fails.
Jose R. MCP
5 martie 2012 18:32Thanks Jose.