[1] Install : Setup.exe -> Do not start program after install. [2] Go to " Cracked DLL's by UZ1 " folder ---> choose x86 or x64 -> Copy all files to : x86 c:\Program Files (x86)\Bluebeam Software\Bluebeam Revu\21\Revu\ x64 c:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\ [3] Done Myldl board4all.biz