сторонних нет - только стандартные для Windows криптопровайдеры.

нет, к сожалению. Могу выполнять всевозможные действия по вашим запросам, если вам, конечно, не надоест.
На всякий случай, список установленных криптопровайдеров из реестра:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Crypto-Pro GOST R 34.10-2001 Cryptographic Service Provider]
"CP Module Entry Point"="DllStartServer"
"CP Module Name"="cpcspi.dll"
"Image Path"="C:\\Program Files\\Crypto Pro\\CSP\\cpcsp.dll"
"ImpType"=dword:00000008
"CP Service Name"="CryptoPro CSP KC1 Service %d"
"CP Service UUID"="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
"SigInFile"=dword:00000001
"Type"=dword:0000004b

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Gemplus GemSAFE Card CSP v1.0]
"Image Path"="gpkcsp.dll"
"Type"=dword:00000001
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Infineon SICRYPT Base Smart Card CSP]
"Image Path"="SccBase.dll"
"Type"=dword:00000001
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Base Cryptographic Provider v1.0]
"SigInFile"=dword:00000000
"Type"=dword:00000001
"Image Path"="rsaenh.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Base DSS and Diffie-Hellman Cryptographic Provider]
"Image Path"="dssenh.dll"
"Type"=dword:0000000d
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Base DSS Cryptographic Provider]
"Image Path"="dssenh.dll"
"Type"=dword:00000003
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft DH SChannel Cryptographic Provider]
"SigInFile"=dword:00000000
"Type"=dword:00000012
"Image Path"="dssenh.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Enhanced Cryptographic Provider v1.0]
"Image Path"="rsaenh.dll"
"Type"=dword:00000001
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Enhanced DSS and Diffie-Hellman Cryptographic Provider]
"Image Path"="dssenh.dll"
"Type"=dword:0000000d
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Enhanced RSA and AES Cryptographic Provider]
"Image Path"="rsaenh.dll"
"Type"=dword:00000018
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft RSA SChannel Cryptographic Provider]
"SigInFile"=dword:00000000
"Type"=dword:0000000c
"Image Path"="rsaenh.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Microsoft Strong Cryptographic Provider]
"Image Path"="rsaenh.dll"
"Type"=dword:00000001
"SigInFile"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\Schlumberger Cryptographic Service Provider]
"Image Path"="slbcsp.dll"
"Type"=dword:00000001
"SigInFile"=dword:00000000

CSP core version: 3.6.5364 KC1
Product version: 3.6.7491

Microsoft Windows [Version 5.2.3790] (т.е. 2003 Server)

Он и стоит (ставил сегодня утром). При попытке поставить заново, вижу, что в сетапе написано: The following products will be replaced...: CryptoPro CSP 3.6.7491

На всякий случай переставил, машину перегрузил. И ничего не заработало, к сожалению.

C:\Program Files\Crypto Pro\CSP>net stop cproctrl

The КриптоПро CSP драйвер service was stopped successfully.


C:\Program Files\Crypto Pro\CSP>net start cproctrl

The КриптоПро CSP драйвер service was started successfully.