Why Bitdefender Av 2009 Can´t Scan This ?

Backdoorman

Everytime I scan my PC, there is no info about this:

C:\Windows\SoftwareDistribution\Download\61c5c886b4aa6b94f4cc52d0cf296b73\Windows6.0-KB957321-x86-EXPRESS.cab=]package_2_for_kb957321_bf~31bf3856ad364e35~x86~~6.0.1.0.mum

What is it?

Is this part of Vista? or from other software?

Is it safe?

john305

Certain hot fixes for Vista are distributed as Windows Update packages with

the MUM file extension. Example: KB959209 lists hot fixes for Vista, If on goolge you search the words .mum file extension it will give you a ms site that will explain it all