I cannot see any Pid entries; but there are quite a few entries that do not point to an actual shortcut:

<GuestProperty name="/VMLite/Launch/Shortcut/50de225c-9fc6-418d-b3bc-ec30bca40bf2" value="" timestamp="1334563669662499300" flags=""/>

Also, they are a few duplicates, for example these are all for Paint Shop Pro, I presume that each entry points to a different snapshot for the application.

<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/604" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313429560632748900" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/605" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313429560756756000" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/606" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313571478038220900" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/607" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313571478143226900" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/608" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313744316300700800" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/609" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313744316553715200" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/610" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313771383790872600" flags=""/>
<GuestProperty name="/VMLite/Shortcut/e71ef730-e62c-4bca-937b-8b33e96213e3/611" value="Jasc Software\Paint Shop Pro 7.lnk" timestamp="1313771383905879200" flags=""/>

I have deleted all the GuestProperty entries that have blank values (I backed up the .xml first) so that there are only 840! entries for the last snapshot but I still get the following error when I launch a VA shortcut:

00:02:46.858 ERROR [COM]: aRC=E_UNEXPECTED (0x8000ffff) aIID={1968b7d3-e3bf-4ceb-99e0-cb7c913317bb} aComponent={Console} aText={The service call failed with the error VERR_TOO_MUCH_DATA}, preserve=false

Any other clues as to what I need to change to get the virtual application short cuts to work again?