Tandem Unpak GUI is graphical front-end for Java version of Tandem Unpak utility provided by Kari Kujansuu.
This is a Java application that can extract files from a Guardian PAK archive. PAK archival tools is widely used in NonStop (official HP product since Guardian G06.16) environment to do file transfer or backup a data. With this utility you can manage your PAK archive just like ZIP files, even more you can drag PAK files directly to the UI to open the PAK file.
Taking advantage of Java multiplatform makes this utility runs in any OS where Java is supported.
Tandem UNPAK GUI (1002 downloads)