[Pierre-Marie Baty]

Generally speaking, to install a HL1 bot, you find the bot DLL, and you stick it somewhere in the mod's folder (like in the "dlls" folder for example). Then, if it's a metamod bot, you add a line in metamod's plugins.ini that points to it (by that I mean it points where you put it). Else, if it's a hook DLL bot, you edit the liblist.game and change the "gamedll" line so that it points to it.

Everytime you need to type a path, it always starts from the mod's directory (for example, C:\Program Files\Steam\SteamApps\blah@bleh.com\half-life\valve or C:\Program Files\Steam\SteamApps\blah@bleh.com\counter-strike\cstrike).

For example, to add a line in the liblist.gam file that would point to C:\Program Files\Steam\SteamApps\blah@bleh.com\half-life\valve\dlls\mybot.dll, you type:
win32 dlls/mybot.dll
If the bot DLL is located outside of the game directory, it's the same thing. To point to C:\Program Files\Steam\SteamApps\blah@bleh.com\MyBot\mybot.dl l you would type:
win32 ../../MyBot/mybot.dll

Slashes / and backslashes \ are the same thing. Backslashes only work in Windows, whereas slashes work on Windows and Linux. That's why I always use them.