Bill Bradshaw wrote:

> Thanks for your response.  I have run this program from the command prompt. 
> Is the signature update different from updating the virus definitions from 
> within MSE Update?  I guess basically I am asking are there 2 database(?) 
> files involved because I know the definitions get updated every morning 
> because I do it manually as my first step after turning on the computer.

The GUI frontend probably checks status to determine if the database
file is newer than the last retrieved database.  I haven't used the
command-mode mpcmdrun tool to know if it bypasses the download by first
checking if the database's datestamp is newer than the local one's
datestamp.

The -SignatureUpdate switch can take additional arguments on the command
line.  The only one that I know about is the -unc argument which
specifies an alternate path to a definition file using a UNC; see
https://en.wikipedia.org/wiki/Path_(computing)#Uniform_Naming_Convention.
Sometimes users will download the definition file and then use mpcmdrun
to use that one.  For example, they may disable auto-update and decide
when to update using the downloaded def file and either run mpcmdrun
themself or have it as a scheduled task.

If you run "mpcmdrun.exe -signatureupdate" in a command shell, what do
you see for its console output?  Do an update, then following with
another update.  Does it just go ahead and push in the same update or
does it notify you that the database is already up to date?
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