"Ad Blocking strings" or "HTML strings" are sections of Web addresses. All Web pages are scanned for the strings specified in the (Defaults) list. Ad Blocking looks for blocked strings within those parts of Web pages that present advertising. If strings match those on its list, those parts are removed by Ad Blocking before the page appears in the Web browser.

STEP 1		Print this page
		We recommend that you print this page before you start. PRINT

STEP 2		Add an Ad Blocking string
		1 Open Norton Internet Security or Norton AntiSpam. If you are using the stand-alone version of Norton AntiSpam: On the Windows taskbar, click Start > Programs > Norton AntiSpam > Norton AntiSpam. If Norton AntiSpam is part of Norton Internet Security: On the Windows taskbar, click Start > Programs > Norton Internet Security > Norton Internet Security. Once Norton Internet Security starts, click Norton AntiSpam. 2 Click Ad Blocking > Configure. 3 In the Ad Blocking window, click Advanced. 4 On the left side of the Advanced window, do one of the following: To block a string on all Web sites, click (Defaults). To block a string on a Web site in the list, select the site's name. To block a string on a Web site not in the list, click Add Site, then in the New Site/Domain dialog box, type the site's address. 5 On the Ad Blocking tab, click Add. 6 In the Add New HTML String dialog box, select the action that you want to take. Your options are: Block: Block ads matching this string. Permit: Allow ads matching this string. (This is available only if you select a site in the Web site list.) 7 Type an HTML string to block or permit. 8 Click OK. 9 When you are done, click OK to close the Advanced window. 10 Click OK to close the Ad Blocking window.

STEP 3		Modify or remove an Ad Blocking string
		1 Open Norton Internet Security or Norton AntiSpam. If you are using the stand-alone version of Norton AntiSpam: On the Windows taskbar, click Start > Programs > Norton AntiSpam > Norton AntiSpam. If Norton AntiSpam is part of Norton Internet Security: On the Windows taskbar, click Start > Programs > Norton Internet Security > Norton Internet Security. Once Norton Internet Security starts, click Norton AntiSpam. 2 Click Ad Blocking > Configure. 3 In the Ad Blocking window, click Advanced. 4 In the left side of the Advanced window, do one of the following: To modify or remove a string from the (Defaults) list, click (Defaults). To modify or remove a site-specific string, click the site's name. 5 In the HTML string list, select the string that you want to change. 6 Do one of the following: To modify a string, click Modify, and then type your changes. To remove a string, click Remove. 7 When you are done, click OK to close the Advanced window. 8 Click OK to close the Ad Blocking window.