Decrypt using openssl

From:
mohitanchlia@gmail.com
Newsgroups:
microsoft.public.vc.language
Date:
Sun, 3 Feb 2008 09:18:05 -0800 (PST)
Message-ID:
<b450321b-fe98-481f-a9f2-00a45b4e86c9@s13g2000prd.googlegroups.com>
I have files that were encrypted using VC++ on windows with following
provider and type:

It's password based RC2. Below is the snippet of the code.
#ifdef USE_BLOCK_CIPHER
    // defines for RC2 block cipher
    #define ENCRYPT_ALGORITHM CALG_RC2
    #define ENCRYPT_BLOCK_SIZE 8
#else
    // defines for RC4 stream cipher
    #define ENCRYPT_ALGORITHM CALG_RC4
    #define ENCRYPT_BLOCK_SIZE 1
#endif

1. CryptAcquireContext( &Provider, NULL, MS_DEF_PROV, PROV_RSA_FULL,
0 )

2. Get key from hashed password
        if (::CryptCreateHash(hProv, CALG_MD5, 0, 0, &hHash))
                {
                // Hash in the password data.
                if (::CryptHashData(hHash, (PBYTE)pPassword,
strlen(pPassword),
0))
                        {
                        // Derive a session key from the hash object.
                        if (!::CryptDeriveKey(hProv,
ENCRYPT_ALGORITHM, hHash, 0
, &hKey))
                                {
                                hKey = (HCRYPTKEY)NULL;
                                }
                        }
                }

3. // Encrypt data using derived key from
password
                        if(!::CryptEncrypt(hKey, 0, bLastBlock, 0,
pbBuffer, &dw
Count, dwBufferLen))

I am looking for relevant openssl command to decrypt the files

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