How to remove the boring mixed signed code in applets like pjirc (I've done this post for this specific one). Tools needed java JDK (just download it from the sun/oracle website). http://www.oracle.com/technetwork/java/javase/downloads/index.html I've used the same password ... it's not a good idea .... but who cares. password keystore: pjircpjirc12345 key password: pjircpjirc12345 Remember to have the jdk binaries in the PATH Go to the pjirc folder and rename the irc-unsigned.jar to irc.jar Use those lines in a batch file. Modify them as much as you want. -----batchfile.bat------ keytool -genkey -keyalg rsa -alias pjirc -dname "CN=Trueliar, OU=Somebody, O=SomeCompany, L=Somewhere, ST=Somewhere, C=IT" -storepass pjircpjirc12345 -keypass pjircpjirc12345 keytool -export -alias pjirc -file pjirc.crt -storepass pjircpjirc12345 jarsigner -storepass pjircpjirc12345 -keypass pjircpjirc12345 irc.jar pjirc jarsigner -storepass pjircpjirc12345 -keypa...