Microsoft Windows [Version 6.1.7000] (C) Copyright 2009 Microsoft Corp. C:\Windows>netsh nap client set csp ?
set csp
[ 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:
set csp name = "Microsoft RSA SChannel Cryptographic Provider" keylength = "2048"