Portland Executable Format

0x00  magic                dword  0xb9ba4c50
0x04  minor version        word   0x0000
0x06  major version        word   0x0000
0x08  payload file offset  dword
0x0c  payload length       dword
0x10  bss length           dword
0x14  virtual entry point  dword

Payload loaded at start of cs=ds=ss.
bss after payload, esp set to end of bss.