The PSP Emulator for Windows thats written in java gets yet another update:

Heres whats new:

Added experimental implementation of PRX decryption version 1.
Fixed a bug in PRX version 2 decryption.
Fixed a bug in NativeCodeManager (spotted by Itaru).
Improved sceIoIoctl cmd 0x01F30003 based on new findings.

http://buildbot.orphis.net/jpcsp/