If I want system administrators to be able to set my site as a trusted site so that users on their networks can run ActiveXs from my site on their computers what do they have to do?

For individual users it is something like

PHP Code:
From your browser menu select 'Tools' 
From the 'Tools' menu select 'Internet Options' 
Select the 'Security' Tab when the dialog box loads 
Select 
'Trusted Sites' Icon in the zone list 
Click the 'Sites' Button 
Un
-check 'Require server verification [https:]' 
Type www.mysite.com in the zone text box 
Click the 
'Add' Button 
Click the 
'Apply Button' to apply setting 
Click the 
'OK' Button and Restart Your Browser 
But how does a system administrators do this for all users on the network?

(note I'm not a network savvy animal so can you spell it out step by step or point me to an example that does please)