Some maps cant open by any Mpq program
Posted: August 26th, 2016, 4:36 am
Some maps are protected by preventing anybody from opening it by mpq programs like this:
A Warcraft 3 map is like a zip file. You have first a 512 bytes big map header with some information. Then you have a MPQ archive attached. The MPQ archive contains all the numerous files needed for a map. The first 4 bytes of the MPQ file are the identifier. It can be read as 'MPQ'. The next four bytes are the header size, which is always hex 0x20 00 00 00. Clever map protectors now change the size from 0x20 00 00 00 to a random number which can look like this (mine) for example: hex 0xG6 RE A2 16. Most MPQ applications now cannot open the MPQ archive anymore because of that wrong size entry. Warcraft 3 seems to ignore false header size entries, so those maps still run in warcraft 3.
So how to open a map like this????
A Warcraft 3 map is like a zip file. You have first a 512 bytes big map header with some information. Then you have a MPQ archive attached. The MPQ archive contains all the numerous files needed for a map. The first 4 bytes of the MPQ file are the identifier. It can be read as 'MPQ'. The next four bytes are the header size, which is always hex 0x20 00 00 00. Clever map protectors now change the size from 0x20 00 00 00 to a random number which can look like this (mine) for example: hex 0xG6 RE A2 16. Most MPQ applications now cannot open the MPQ archive anymore because of that wrong size entry. Warcraft 3 seems to ignore false header size entries, so those maps still run in warcraft 3.
So how to open a map like this????