Hi Bazza,
I presume you have seen the answer on your other copy of this question, but just in case you haven't, one of the engineers from the states has written in to say that you can't really use tasks created in LabVIEW, in VB.NET.
You need to create them in MAX if you want them to be global across all applications.
Hope this helps,
Best regards,
Peter H.
Applications Engineer.
NIUK.