Dear Alexander Sotirov, AS> A much simpler solution is to use heap spraying (which works fine on Vista) for AS> systems that don't have DEP enabled. Are we talking Sofware DEP or Hardware enforce DEP ? -- http://secdev.zoller.lu Thierry Zoller Fingerprint : 5D84 BFDC CD36 A951 2C45 2E57 28B3 75DD 0AC6 F1C7