Hello! I installed tap and added it in my windows 7. When I start aiccu ipv6calc does not recognizes me. Here is the aiccu test: http://pastebin.com/Ejzc73pt Here is the aiccu start: sock_getline() : "200 SixXS TIC Service on noc.sixxs.net ready (http://www.sixxs .net)" sock_printf() : "client TIC/draft-00 AICCU/2008.03.15-console-win32 WinNT/6.1.7 600" sock_getline() : "200 Client Identity accepted" sock_printf() : "get unixtime" sock_getline() : "200 1288610003" sock_printf() : "username MSY10-SIXXS" sock_getline() : "200 MSY10-SIXXS choose your authentication challenge please" sock_printf() : "challenge md5" sock_getline() : "200 2129a9f2a3884f5a3ea432104cbb992a" sock_printf() : "authenticate md5 db420886645371e5e562630c632a56e3" sock_getline() : "200 Successfully logged in using md5 as MSY10-SIXXS (Matevz Si pek)" sock_printf() : "tunnel show T31041" sock_getline() : "201 Showing tunnel information for T31041" sock_getline() : "TunnelId: T31041" sock_getline() : "Type: ayiya" sock_getline() : "IPv6 Endpoint: 2001:15c0:65ff:3f4::2" sock_getline() : "IPv6 POP: 2001:15c0:65ff:3f4::1" sock_getline() : "IPv6 PrefixLength: 64" sock_getline() : "Tunnel MTU: 1280" sock_getline() : "Tunnel Name: My First Tunnel" sock_getline() : "POP Id: simbx01" sock_getline() : "IPv4 Endpoint: ayiya" sock_getline() : "IPv4 POP: 212.18.63.73" sock_getline() : "UserState: enabled" sock_getline() : "AdminState: enabled" sock_getline() : "Password: [..]" sock_getline() : "Heartbeat_Interval: 60" sock_getline() : "202 Done" Succesfully retrieved tunnel information for T31041 sock_printf() : "QUIT A bitter thought, but I have to go" Tunnel Information for T31041: PoP Id : simbx01 IPv6 Local : 2001:15c0:65ff:3f4::2/64 IPv6 Remote : 2001:15c0:65ff:3f4::1/64 Tunnel Type : ayiya Adminstate : enabled Userstate : enabled Name : My First Tunnel Flag: HAS_IFHEAD not present Flag: NEED_IFHEAD not present [warning] Error opening registry key: SYSTEM\CurrentControlSet\Control\Class\{4D 36E972-E325-11CE-BFC1-08002BE10318}\Properties (t1) Renaming adapter 'Povezava lokalnega omreja 3' to 'aiccu' and using it [tun-start] Trying \\.\Global\{A137F5C8-287B-4215-B183-801F85E6BF2E}.tap Flag: HAS_IFHEAD not present Flag: NEED_IFHEAD not present [AYIYA-start] : Anything in Anything (draft-02) [AYIYA-tun->tundev] : (Socket to TUN) started what could be wrong?