it is a missing file is there any dll or ocx files inthe folder you downloaded the booter in if so they need to be registered into the system32 folder using the Regsvr32 command "Regsvr32 NameOfFile.ocxORdll"if not itd be hard to tell you which file it is missing
also if you run any yahoo/homemade programs you will also need this installed
viewtopic.php?f=21&t=1832 go here
you also may try some of the missing files already posted
viewforum.php?f=21 go here