Installation:
Put wow.exe in your game folder with file replacement (Or rename it)
patch-c.mpq to data foler
patch-enus-c.mpq in data\enus folder. Or rename the file and put it in your language folder(For example patch-enus-c.mpq in patch-eses-c.mpq and put it in the Data\eses folder)
loginui.lua to interface folder
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You can find other or more detailed instructions in my discord channel - WotLK 3.3.5a HD client:
https://discord.gg/Gyb9Z252vt
You can also take a look at my patchs repository:
https://drive.google.com/drive/folders/1qFm16l4AI5XhqZXVIi6JwMA_f5d4akY3?usp=sharing 
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Wow.exe includes the following patches:
Expansion of used memory up to 4GB
Fix black screen
Support for window blinking when interacting with a character (For full operation, there is a Flashwindow addon inside patch-c.mpq)
Access to FrameXml (So that patch-c.mpq and patch-enus-c.mpq can work)
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Adding Saved Servers and Accounts:
Open the LoginUI.lua file, in the path - World of Warcraft 3.3.5a HD\Interface.
Add the following block to ServerList so that the server appears in the list:
        {
            ["Host"] = "logon.warmane.com",
            ["Portal"] = "en",
            ["Description"] = "Warmane",
            ["HomePage"] = "https://www.warmane.com/",
            ["ManageAccount"] = "https://www.warmane.com/account/login",
            ["AccountList"] = {
                -- 1 server account
                {
                ["Login"] = "",
                ["Password"] = "",
                },
                -- 2 server account
                {
                ["Login"] = "",
                ["Password"] = "",
                },
                -- 3 server account
                {
                ["Login"] = "",
                ["Password"] = "",
                },
                -- 4 server account
                {
                ["Login"] = "",
                ["Password"] = "",
                },
                -- 5 server account
                {
                ["Login"] = "",
                ["Password"] = "",
                },
                -- end of server accountlist
            },
        },
["Host"] Responsible for the login to connect to the server. What is usually prescribed in the realm list.
["Portal"] This is the server language.
["Description"] Server name.
["Login"] Login of your account.
["Password"]  password.
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To save your account and password, change these lines:
["Login"] = "", to ["Login"] = "Your Login",
["Password"] = "", to ["Password"] = "Your Password",
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Login Screen Settings:
["SceneList"] = {
"cl", -- classic
"bc", -- burning crusade
"lk", -- lich king
--"ns", -- chinese lich king (no Sindra)
"ca", -- cataclysm
"mp", -- pandaria
"wd", -- draenor
"le", -- legion
--"ln", -- legion (beta)
"ba", -- battle for azeroth
"sl", -- shadowlands
"df", -- dragonflight
--"nd", -- dragonflight (beta, no dragon)
--"al", -- alliance
--"ho", -- horde
--"hm", -- human
--"hu", -- human (old)
--"ot", -- orc
--"or", -- orc (old)
--"dg", -- dwarf
--"dw", -- dwarf (old)
--"ud", -- undead
--"sc", -- undead (old)
--"ne", -- night elf
--"nl", -- night elf (old)
--"tr", -- tauren
--"ta", -- tauren (old)
--"gn", -- gnome
--"tl", -- troll
--"dr", -- draenei
--"be", -- blood elf
--"wr", -- worgen
--"gb", -- goblin
--"pd", -- pandaren
--"pn", -- pandaren (char creating)
--"ve", -- void elf
--"nf", -- nightborn elf
--"ld", -- lightforged draenei
--"hr", -- highmountain tauren
--"id", -- darkiron dwarf
--"oc", -- orc mag'har
--"kt", -- kultiran
--"zl", -- zandalari
--"mg", -- mechagnome
--"vp", -- vulpera
--"dy", -- dracthyr
--"dt", -- death knight
--"dk", -- death knight (old)
--"dh", -- demon hunter
--"cs", -- caracterselect
--"bl", -- black clear screen
 
Choose from 47 unique screens (+ 1 no picture). 
To disabled the screen, enter -- (--"cs", -- characterselect) at the beginning of the line.
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If you want to set your own image as the background of the login screen, for this, the script implements the function of working with TGA files. For this:
1. Choose an image that matches your screen resolution
2. Go to the website https://image.online-convert.com/convert-to-tga
3. Load the file and set the new resolution to 1024x1024
4. Download the resulting image
Place the file in a convenient location and specify its path in the config using double backslash in the file path. The path can be relative and complete. 
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Login screen music settings:
Random music playback is disabled by default as music is assigned to each screen.
["LoginMusic"] ={
        --"cl",
        --"bc",
        --"Sound\\BT_IllidariWalkHero09.mp3",
    }
As music you can use:
1. Login screen names (see above for a list of all screens)
2. The path to in-game music.
3. Own music in formats **MP3, OGG и WAV**
Place the file in a convenient location and specify its path in the config using double backslash in the file path. The path can be relative and complete
Note: Music from this section takes priority over music from the login screen.