On the Block Programs tab, you can select the software you want to prevent the user from accessing.
To block a program, in the left-hand list box, select the programs that that you want to block, and then click Block (located between the two list boxes). The selected items will appear in the Block Programs list box to the right. You can search for a program by typing the name of the program in the Search box. You can also browse for programs not on the list by clicking Browse.
To unblock a program, select the program in the Block Programs list box, and then click Remove. To unblock all programs, click Remove All.
When you have added the programs you want to block, click OK.