Ewww... i hate winrar with the crack. Use the Winrar corporate or Winrar portable. No hack, no keygen, no crack. It works perfectly fine.
Once you used winrar corporate or winrar portable, you'll never look back to the trials. The two download below is Solid SFX archives meaning it takes very little space while able to decompress itself without another softwares. It's in .exe file.
Portable Winrar Corporate v3.62
http://cid-2fedd1342ad58911.skydrive...0Corporate.exe
Winrar Corporate
http://cid-2fedd1342ad58911.skydrive...0Corporate.exe