Both executables have same parameter to run it on silent mode:

name-executable.exe /Q

So to execute Microsoft Safety Scanner (as example)  within OCS:

Create a new Package and execute msert-x86.bat with those contents:

msert-x86.exe /Q

Upload as zip, activate, and assign a computer to run it. When execute on the client machine it could fail and give an exit_code

• EXIT_CODE_6 At least one infection detected. No errors.
• EXIT_CODE_7 At least one infection was detected, but errors were encountered.
• EXIT_CODE_10 At least one infection was detected and removed, but a restart is required for complete removal

You can see more exit codes on KB891716 but if you want a more detail you can check %windir%\debug\mrt.log

This software does not create a new entry on the Add/Remove Program list. But I will add and entry on the registry under

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RemovalTools\MRT\Version . So to add it on OCS you need to create a registry entry

Registry -> New Data

Name (you choose): MRTVersion

Registry hive:  HKEY_LOCAL_MACHINE

Path of the key: SOFTWARE\Microsoft\RemovalTools\MRT

Name of the key that will be read: Version

You will get a string:  A769BB72-28FC-43C7-BA14-2E44725FED20 (This one is for January 2013)

To do so you could run this line as root:

gconftool-2 –direct \
–config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \
–type bool \
–set /desktop/gnome/remote_access/enabled true

Sometimes the machines is unattended, so if no user is around to give you access then you will not be able to get that session. To disable the prompt message just type:

 gconftool-2 –direct \
–config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \
–type bool \
–set /desktop/gnome/remote_access/prompt_enabled false

This is up to the admin, this could just hide that you access that session, just be careful. This settings has privacy issues.

gconftool-2 –direct \
–config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \
–type string \
–set /desktop/gnome/remote_access/icon_visibility never

<Printer KONICA-MINOLTA-C360Series>
DeviceURI ipp://192.168.252.222/ipp
Filter application/vnd.cups-raw 0 -
Filter application/vnd.cups-command 0 commandtops
Filter application/vnd.cups-postscript 0 -
</Printer>

Change that to

<Printer KONICA-MINOLTA-C360Series>
DeviceURI ipp://192.168.252.222/ipp
Filter application/vnd.cups-raw 0 minolta
Filter application/vnd.cups-command 0 commandtops
Filter application/vnd.cups-postscript 0 minolta
</Printer>

Then create /usr/lib/cups/filter/minolta so it inject some PJL commands. And give it a execute permission chmod +x minolta :

#!/bin/bash

source /etc/cups/ppd/${PRINTER}.km

echo -en “\033%-12345X”
echo -en “@PJL JOB\015\012″
echo -en “@PJL SET KMSECTIONNAME = \”${ACCOUNT_NAME}\”\015\012″
echo -en “@PJL SET KMSECTIONKEY2 = \”${ACCOUNT_PASSWORD}\”\015\012″
echo -en “@PJL SET KMCOETYPE = ${ACCOUNT_COETYPE}\015\012″
echo -en “@PJL ENTER LANGUAGE = POSTSCRIPT\015\012″

cat -

echo -en “\004\033%-12345X\015\012@PJL EOJ\015\012″
echo -en “\033%-12345X”

Then create a file /etc/cups/ppd/KONICA-MINOLTA-C360Series.km and change name and password to match your setup

ACCOUNT_NAME=”user”
ACCOUNT_PASSWORD=”1234″
ACCOUNT_COETYPE=”0″

I do not take the credit of all this, just found it here:
problem installing driver for Konica Minolta Bizhub 222

iPhone vs. Android vs. BlackBerry

start with liveCD,
install zerofree ( apt-get install zerofree)
zerofree /dev/sda1

When finish shutdown the virtual machine and execute on the host system:

VBoxManage modifyhd vdi_file.vdi compact

HOWTO: Reduce the size of a dynamic VDI file in VirtualBox

update:  SytemRescueCD have zerofree installed by default as for version 3.1.0