what is dumpprep.exe?

Dumpprep.exe is system process that records the system errors .when ever a error occurs it stores the details in a text file and asks us to send to microsoft option

its not a virus.

start-> run->msconfig->startup->Dumpprep.exe

it is always runs after desabling it also

what is config.msi

config.msi is folder that is present in hidden format

when ever we install or update some files their backup copies are stored in the config.msi folder

automatically they them self deleted ,if not there is no problem t\regarding this