Hello, Oleg!
I specialize in reverse engineering, security auditing and program protection. Your project sounds like an interesting challenge and very good fit. Would like to know more about how many *.abs files you have, the version of database, and whether or not it's password-protected.
FYI, below are some links from my previous projects:
www.freelancer.com/projects/delphi/Seeking-bit-Delphi-expert-hacker/
www.freelancer.com/projects/c-sharp-programming/Convert-Windows-Dll-function-code/
www.freelancer.com/projects/cplusplus-programming/Need-someone-expert-EXE-file/
www.freelancer.com/projects/C-programming/Diassembly-exe-file/
www.freelancer.com/projects/C-Programming/remove-security-from-exe/
www.freelancer.com/projects/C-Programming-Metatrader/decompile-protected/
www.freelancer.com/projects/C-Programming-Delphi/Need-reverse-engineer/
www.freelancer.com/projects/C-Programming-Anything-Goes/bypassing-lost-password/
www.freelancer.com/projects/Java-Visual-Basic/Revsere-exe/
www.freelancer.com/projects/Delphi-Anything-Goes/EXE-Change/
www.freelancer.com/projects/Software-Architecture/Reverse-engineering-7762549/
We can discuss further over chat. Feel free to use Russian if it's easier for you. Thanks for reading.
Best,
-Mike