iFixer Fix for Spirit and Blackra1n Jailbreak Users
iFixer is a new utility that will fix iTunes 9.1.x related errors when running Spirit Jailbreak for iPhone, iPad and iPod touch, or blackra1n on Windows. The program basically has two buttons: “Make it Spirit!” and “Make it ra1n!”. Clicking on each of them will solve the respective iTunes 9.1.1 related issue.
You must place iFixer.exe in the same folder as Spirit.exe or Blackra1n.exe for them to work properly. Here is a short video which explains the running procedure.