What valuable Windows file does this delete if you follow these instructions?

-=-=-=-

>THIS IS A HOAX
>The file "jdbgmgr.exe" is NOT a virus.
>Larry

-=-=-=-

>Philip Mische wrote:
>
>>   Greetings,
>>   I received the e-mail that follows today and sure enough, I had the file
>>  referred to.  Please follow these instructions and save everyone in your
>>  phonebook from having to deal with this - it just takes a few minutes.
>>   I received an email today that infected my address book with a
>>virus.  It is
>>  possible that this virus was passed on to you because your address was in my
>>  book. The virus is called jdbgmgr.exe
>>  Apparently, it cannot be detected by Norton or McAfee Anti-virus
>>programs. The
>>  virus supposedly sits dormant for 14 days before damaging the system. I
>>  understand that it is sent automatically by messenger and by the
>>address book,
>>  whether or not you send e-mails. To get rid of it:
>>
>>  Go to Start, then Find or Search in Files/Folders.
>>  Type the filename jdbgmgr.exe
>>  Be sure to search your "C" drive - Click Find or Search
>>  The virus has a Teddy Bear Logo with the name jdbgmgr.exe.
>>  DO NOT OPEN THIS FILE! Right click on the file and delete it.
>>  Go to the recycle bin and delete it there also.
>>  IF YOU FIND THE VIRUS, YOU MUST CONTACT EVERY ONE IN YOUR ADDRESS BOOK.
>>
>  > The procedure was very easy to do, but I am sorry for the inconvenience.
--
Dave Carpenter

"Any sufficiently advanced technology is indistinguishable from
magic." -- Arthur C. Clarke