Hi all, I have installed the follow QFEs in my development system: 20040514_Q842930_xpe_sp2_x86_enu.exe 20040514_Q824706_xpe_sp2_x86_enu[Desktop QFE Installer Tool 1.0].exe Then I build an image with Desktop QFE Installer component and resolve its dependency. But when I try to run XP Pro KBxxxx on my XPE device, the follow error message occur: "Setup could not verify the integrity of the file Update.inf. Make sure the Cryptographic service is running on this computer." I have tested the following KBxxxxxx: WindowsXP-KB828028-x86-ENU.exe failed WindowsXP-KB835732-x86-ENU.EXE failed WindowsXP-KB828741-x86-ENU.EXE failed WindowsXP-KB840374-x86-ENU.EXE success But Cryptographic service is running certainly, and I tried to delete c:windowssystem32CatRoot2 directory as MS KB822798 says. But the error remained. Any problem in my work???