The most recent version of PGP for which source is available is 6.5.8. The most recent international version of PGP is 6.5.1. All 6.5 versions have full support for RSA keys. Note that 6.5.1 does not include PGPdisk; if you have PGPdisk installed from PGP 6.0.2 and you upgrade to the freeware 6.5.1, you will lose PGPdisk functionality. The 6.0.2 directory contains versions of PGP 6.0.2 for Win 9x/NT, which contain PGPdisk. 6.5.8 PGP Freeware 6.5.8 for Win9x/NT/2000 6.5.1 PGP 6.5.1int for Win9x/NT 6.0.2 PGP 6.0.2 for Win9x/NT