Did you resolve this error?
We are also encountering the same issue.
Function ssl3_send_client_verify returning error code a1d40201: CAPI error
[2013.12.13 13:15:02.816][ERROR][sbus.exe ][SSL ][ 4800] SSL3 client: handshake failed.
[2013.12.13 13:15:02.816][ERROR][sbus.exe ][URL ][ 4800] ERROR(0xA1D40201) in TOKEN_CAPI->sec_url_ssl_conn_connect(): CAPI error
[2013.12.13 13:15:02.816][ERROR][sbus.exe ][URL ][ 4800] ERROR(0xA1D40201) in TOKEN_CAPI->url_setsecure(): CAPI error
[2013.12.13 13:15:02.816][ERROR][sbus.exe ][URL ][ 4800] ERROR(0xA1D40201) in TOKEN_CAPI->url_httpquery(): CAPI error
[2013.12.13 13:15:02.816][ERROR][sbus.exe ][URL ][ 4800] ERROR(0xA1D40201) in TOKEN_CAPI->url_query(): CAPI error
[2013.12.13 13:15:03.327][ERROR][sbus.exe ][BASE ][ 3572] ERROR(0xA0100017) in CRYPT->sec_crypt_cipher_get_cipher_len(): An attribute is missing
[2013.12.13 13:15:04.459][ERROR][sbus.exe ][SSL ][ 2740] Function ssl3_get_server_certificate returning error code 0: OK
[2013.12.13 13:15:04.475][ERROR][sbus.exe ][TOKCAPI ][ 2740] ERROR(0xA1D40201) in TOKEN_CAPI->sec_TokenObjectPrivateKey_sign(): CAPI error
[2013.12.13 13:15:04.475][ERROR][sbus.exe ][TOKCAPI ][ 2740] -Parameter 1: CryptAcquireContextW failed
[2013.12.13 13:15:04.475][ERROR][sbus.exe ][SSL ][ 2740] Error 'CAPI error' in 'TOKEN_CAPI'
One observation is that this happens only in those desktop that has Smartcard configured and there is additional certificate stored in the Smart card. If the certificate is removed or Smart card driver is uninstalled then it works fine.
Appreciate your help.
Thanks
Sanath