: Right-click on part01.rar and select "Extract Here." The software will automatically pull data from part17.rar and all other pieces to recreate the original installer.
: If you receive a "Checksum Error" during extraction, it usually means part17 (or another part) was downloaded incorrectly and needs to be re-downloaded. Safety Note BLACKTAIL [DODI Repack].part17.rar
: Files ending in .part17.rar mean the original game installer has been split into many smaller pieces (at least 17 in this case). You need all parts (part1, part2, etc.) in the same folder to extract the contents successfully using software like WinRAR or 7-Zip . : Right-click on part01