Virtual PC 2007 slowness when running on laptop
Virtual PC 2007 may respond slowly when running on some computers. To fix this, edit the default configuration file options.xml in C:Documents and SettingsUsernameApplication DataMicrosoftVirtual PC by adding the following line:
<virtual_machines>
enable_idle_thread type=”boolean”>true/enable_idle_thread>
</virtual_machines>
under the virtual_network section and before the window section.
On a side note, the configuration file can be safely deleted- a new file will be created the next time to start Virtual PC.