PC/SC-lite 1.0
The incredibly hard to find PC/SC-lite 1.0 package which is referenced in the Sun Ray Software 4 Release Notes can be found here for both Solaris x86 and SPARC. If you want to do stuff with your smart cards other than hot desking (i.e. PIN based logins to Windows, digitally sign your email, use ActivIdentity middleware on Solaris) you'll need this package.
Please read the release notes as there is some pre-work (removing incompatible packages and some work if you are using Trusted Extensions) before you can add the new packages.
