static extern bool CryptAcquireContext(ref IntPtr hProv, string pszContainer,

Declare Function CryptAcquireContext Lib "advapi32.dll" (ByRef hProv As IntPtr, _

        public static extern bool CryptAcquireContext(

bool res = Crypt32.CryptAcquireContext(out hProv, "user", null, PROV_RSA_FULL, CRYPT_NEWKEYSET);