These are the empty tables HANDLEs: Left Table: 48120353 Right Table: 48120401 Output Table: 48120449 ... Table communication between perl and dll is correct. Pass code: 1 ... These are the empty tables LPHANDLEs (Pack Option: L): Left Table: $VAR1 = "!B\336\2"; Right Table: $VAR1 = "QB\336\2"; Output Table: $VAR1 = "\201B\336\2"; ... Tables: C:/Temp/Requests/TableTest1.TBL and C:/Temp/Requests/TableTest +1.TBL loaded correctly. Pass code: 1 ... After loading the tables with the files, the tables LPHANDLEs (Pack Op +tion: L): Left Table: $VAR1 = "\31\261\337\2"; Right Table: $VAR1 = "y\333\340\2"; Output Table: $VAR1 = "\201B\336\2"; ... After laoding the tables with the files, the tables HANDLEs (Unpack Op +tion: L): Left Table: 48214297 Right Table: 48290681 Output Table: 48120449