You must construct your own MuServer based on this things:
Original 1.00.97/.98 Season 5.2 Chs MuServer Webzen:
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Original 1.01.00/.01 Season 6.2 Tha MuServer Webzen:
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Original 1.01.02/.03 Season 6.2 Chs MuServer Webzen:
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Original 1.01.02/.03 Season 6.2/6.3 Tha MuServer Webzen:
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Modified 1.01.02/.03 Season 6.2/6.3 Gmo MuServer Webzen:
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To crack M:\ Drive MessageBox Error, you simply debug your compiled: GameServer.exe in Ollydbg and: Search for all referenced text string -> "M:" to make bypass.
Small Example (Guide) with ScreenShots of How to make to Search Strings for bypass on any GameServer.exe Original of Webzen (used: 1.00.97/.98 Season 5.2 Chs) in Ollydbg 2.00:
1st Step: load your damn: GameServer.exe in ollydbg (you must to be sure that you have: mumsg.dll and WzAG.dll on the same directory/path that your GameServer.exe because it's imports).
2nd Step: you must press: Second Click -> Search for -> All referenced text strings:
you must to be sure that you have unchecked: "Ignore case". and search: "M:" (withouts: "").
3rd Step: ENTER and in: Dissasemble window, press: Left-Click on: "Hex dump window" and press: "Ctrl+G" to search: 0085B448 allocated string: "M:" in memory, then press: Right-Click -> Edit -> Edit binary string (or at least something how this).. you can see something how this:
you must change this Ducking: "M:" by: "..:" (and if you using Ollydbg 2.00), on this step you must save, and re-analize (later) again... your stored copy of: "GameServer.exe" (because olly 2.00 have a small bug).
4th Step: Repeat the: "
1st Step" and you can search (now) this poop:
then you must press: "ENTER" and into the: "Dissasembly window" you can see something how this:
5th Step: now you only must change this fuckings: "JNE SHORT 005B02AC" by: "JMP SHORT 005B02AC", and the same for: "JNE SHORT 005B02AC" (of bellow). and save your new copy on Disk of: "GameServer.exe", ready your GameServer must be Cracked or Bypassed (now).
or you can directly remove of the source... you must press: Ctrl+F on Visual Studio and search: "M:" and back to null the: "If" instruction.
/**/
Small Example of Correct Edition (using my Released Source of 1.01.03 Partially Rebuilded):
Gamemain.cpp file:
PS: If you don't searching for use C: how local disk you can easy change string by something how: "..\\Data"
Gamemain.cpp file: