what os?

Windows 98

well krazybot include a screenshot or copy the exact error message etc

otherwise not much I can do with that information, a few people have tested the new launcher and no reported problems so I'm guessing its something on your end.

I have reuploaded the launcher and setup without some changes you could try that, the version you have is a debug version.

Also it needs .net framework 4  ..should work win xp upto win8.1

Try this version: http://kraftzone.net/downloads/MinecraftLauncher_v1.11.zip

Failed to login: Invalid session (try restarting your game)

i did restarted mc a lot of times but still the same error

connecting to the cracked server ip right?

mc.kraftzone.net:25575

make sure "enable authentication" is not ticked on before clicking 'Launch'.. otherwise you need a premium account login details for it to get a valid session info

My kzmc won't read the ip

I have disabled Enable Authendictaion

I dunno what you mean? "read the ip"??

the autoconnect feature is broken (mojang broke it with 1.7 even though it worked in 1.6)

thnx KOolio