Comments by cchubz (Top 1 by date)

thank you very much José, you rocked..

For others wondering: The solution is simple.
C++ side (managed)
System::Convert::ToBase64String(array<unsigned char>, 0, length)

then in java part
(Base64.decodeBase64(String.getBytes())

José is right about the soap standard about binary base64 encoding.

cheers