Autostart folder
All items in the autostart folder will autostart

Win.ini
[windows]
load=trojanserver.exe
run=trojanserver.exe

System.ini
[boot]
Shell=Explorer.exe trojanserver.exe

Autoexec.bat
c:\trojan.exe

Registry Shell open
[HKEY_CLASSES_ROOT\exefile\shell\open\command]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\exefile\shell\open\command]
A key with the value "%1 %*",  will be executed each time you execute a .exe file. "trojanserver.exe %1 %*" .

Alternate Registry Keys
[HKEY_CLASSES_ROOT\.exe] @="myexefile"]
[HKEY_LOCAL_MACHINE\Software\CLASSES\myexefile\shell\open\command\ @="trojanserver.exe %1 %*"]
winstart.bat
A batch file that autostarts with windows.

Main Registry
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce]

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices]

wininit.ini
This file is called upon when windows loads, it is then deleted.