: Ensure you have the 78repack.exe file and its supporting .dll files (like libwim-15.dll ) in the same folder.
If you are referring to a software "repack" (typically compressed versions of larger programs or games), here is a general review outline for that type of utility: Review: General Software Repack Utility Performance: 78repackexe exclusive
The "exclusive" nature of the file became a cautionary tale in the piracy community: if a repack seems too small or is offered as an "exclusive" version containing 78RePack.exe, it is almost certainly a Trojan designed to hijack user data. Summary of Risks Analysis suggests that 78RePack.exe is a Trojan horse disguised as a utility. Its primary functions include: System Persistence: : Ensure you have the 78repack