BinaryStructure

Hotline Protocol

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Core Documentation

• Documentation Home
• Glossary / Terms
• Protocol History

Technical Specifications

• Transaction IDs
• Field Definitions
• Access Bits
• Error Codes

Binary & Data

• FILP/RFLT Specs
• News Headers
• Logic Sequences

External Networking

• Tracker (HTRK)
• HTTP Tunneling
• Global Server

Assets

• Icon Gallery

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== Flat File Object (FILP) ==

Transactions 202, 203, 210, and 213 utilize the Flattened File Object.

Header

• Format: 'FILP' (0x46494C50)
• Version: 1 (2 bytes)
• Fork Count: 2 (Typically INFO and DATA)

Information Fork (INFO)

Offset	Size	Description
0	4	Platform ('AMAC' or 'MWIN')
4	4	Type Signature
8	4	Creator Signature
32	8	Create Date
40	8	Modify Date
50	Var	File Name (Max 128 chars)

Data Fork (DATA)

• Fork Type: 'DATA' (0x44415441)
• Data Size: 4 bytes (Total file size)
• Content: Raw binary file data.