I have written a smart card minidriver (for a read-only card). Now I am trying Windows 7 smart card logon, but there is "No valid certificates found" error on logon screen, when I insert the card. I have two certificates in the smart card, one for encryption, another for digital signature and windows logon. Encryption certificate: Key Usage: Key Encipherment Signature and Logon certificate: Key Usage: Digital Signature, Non-Repudiation EKU : Client Authentication, Secure Email, Smart Card Logon I set two cmapfile records for these certificates: cmap[0].wszGuid = L"encr0@ug.net"; cmap[0].bFlags = CONTAINER_MAP_VALID_CONTAINER; cmap[0].bReserved = 0; cmap[0].wSigKeySizeBits = 0; cmap[0].wKeyExchangeKeySizeBits = 2048; cmap[1].wszGuid = L"sign0@ug.net"; cmap[1].bFlags = CONTAINER_MAP_VALID_CONTAINER|CONTAINER_MAP_DEFAULT_CONTAINER; cmap[1].bReserved = 0; cmap[1].wSigKeySizeBits = 2048; cmap[1].wKeyExchangeKeySizeBits = 0; Function calls in minidriver logs: when card inserted first time: CardReadFile() [cmapfile] CardGetContainerProperty() [CCP_PIN_IDENTIFIER] for ContainerIndex: [1] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [cmapfile] CardReadFile() [ksc00] CardGetProperty() [CP_CARD_CAPABILITIES] CardGetProperty()[CP_CARD_GUID] CardReadFile() [cmapfile] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[0] CardGetContainerInfo() ContainerIndex...[1] CardGetProperty() [CP_CARD_GUID] CardReadFile() [cmapfile] CardGetContainerProperty() [CCP_PIN_IDENTIFIER] for ContainerIndex: [0] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[0] CardReadFile() [cmapfile] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[0] CardReadFile() [cmapfile] CardReadFile()|pszFileName = [kxc00] CardGetProperty() [CP_CARD_CAPABILITIES] CardGetProperty()[CP_CARD_GUID] CardReadFile() [cmapfile] CardGetContainerProperty() [CCP_PIN_IDENTIFIER] for ContainerIndex: [1] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [cmapfile] CardReadFile() [ksc01] --- File not found CardReadFile() [cmapfile] CardDeleteContext() CardAcquireContext() CardGetProperty() [CP_CARD_GUID] CardReadFile() [cmapfile] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [msroots] CardGetProperty()...[CP_CARD_CAPABILITIES] CardDeleteContext() when smart card logon occurs: CardAcquireContext() CardGetProperty() [CP_CARD_GUID] CardReadFile() [cardcf] CardGetProperty() [CP_CARD_SUPPORTS_WIN_X509_ENROLLMENT] CardReadFile() [cmapfile] CardGetContainerProperty() [CCP_PIN_IDENTIFIER] for ContainerIndex: [1] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile() [cmapfile] CardReadFile() [ksc00] CardGetCapabilities...[CP_CARD_CAPABILITIES] CardReadFile() [cmapfile] CardDeleteContext() CardAcquireContext() CardGetProperty() [CP_CARD_GUID] CardReadFile() [cardcf] CardGetProperty() [CP_CARD_SUPPORTS_WIN_X509_ENROLLMENT] CardReadFile() [cmapfile] CardGetContainerProperty() [CCP_PIN_IDENTIFIER] for ContainerIndex: [1] CardGetProperty() [CP_CARD_PIN_INFO][1] CardReadFile() [cmapfile] CardGetContainerInfo() ContainerIndex...[1] CardReadFile()|pszFileName = [cmapfile] CardReadFile()|pszFileName = [ksc00] CardGetProperty() [CP_CARD_CAPABILITIES] CardReadFile() [cmapfile] CardDeleteContext() Why smart card logon doesn't continue? Is my certificate not suitable for logon, or did I write incorrect cmapfile, or anything else?

You may want to ask this in the Windows 7 Forum: http://social.technet.microsoft.com/Forums/en-US/category/w7itpro