(racoon 767) can I specify a gssapi_id as a unicode string?

While struggling to interop with the WinXP IPsec configuration via
GSS-API / Kerberos
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/randz/
protocol/ike_protocol_with_gss-api_authentication.asp), it appears that
the Microsoft implementation of the GSS-API endpoint name is encoded in
Unicode (UTF-16, LE, no BOM). I don't know if it requires this or not of
the other end. Is there a way to specify the encoding of strings in
racoon? 

Thx,
nh