When you say "without loading it up into MS Access", do you mean "without interactively running MS Access", or do you mean "without using the MS Access database engine"?

If they are static files, your best bet is whip up a Win32 Perl script to extract the databases from the gzips, load them up using DBI::ODBC, and them write them out again in the format or database of your choice. Is there a reason you need to actually perform the extraction on Solaris?

   MeowChow                                               
                print $/='"',(`$^X\144oc $^X\146aq1`)[-2]