ngetlite retrieves messages as described in each listfile. Listfiles are generated with:
nget -w <listfile> <retrieval args>
In almost all circumstances, you will want to download and decode directly with nget.
However, in some cases
ngetlite can be useful on computers with low ram or cpu, that cant handle the large cache
files needed for some groups. You can run nget -w on some other computer and then do
the actual downloading with ngetlite using very little resources.