To configure a restrictive policy on XenApp 6.5

1. Click Start > Administrative Tools > Management Consoles > Citrix AppCenter.
2. In the left pane, expand XenApp, expand the server and then click Policies.
3. In the Policies pane, click the User tab and then click New.
4. In Name, type a name for the policy and then click Next.
5. Under Categories, click All Settings.
6. Under Settings, in Auto connect client drives, click Add.
7. In the Add Setting dialog box, click Disabled, click OK and then click Next.
8. Under Categories, click All Filters.
9. Under Filters, in Access Control, click Add.
10. In the New Filter dialog box, click Add.
11. In Mode, click Deny.
12. In Connection Type, select With Access Gateway.
13. In AG Farm, type the virtual server name.
14. In Access Condition, type or select the session policy name that is configured on NetScaler Gateway, click OK two times, click Next and then click Create to complete the wizard.