s! name = name keylength = keylength Sets the cryptographic service provider (CSP) that will be used on the target computer. ...

%1!s!     [ name = ] name     [ [ keylength = ] keylength ]       Sets the cryptographic service provider (CSP) that will be used on the     target computer. You can obtain the name from the "show csps" command.       name - Specifies the name of the CSP. You can specify only one name.            (Required)     keylength - Specifies the length of the asymmetric key. The default is               2048. (Optional)       Example:        %1!s! name = "Microsoft RSA SChannel Cryptographic Provider" keylength = "2048"