PETool

PETool - PE Icon & Vendor Info Editor

Features

• Icon Replacement — inject any .ico file into an existing .exe, supports multi-resolution icons (16x16 → 256x256)
• Version Info Cloning — copy full vendor metadata (Company, Description, Copyright, Product, Version) from one PE to another
• Single pass — both operations can be applied in one command
• No recompilation needed — modify already-built executables directly
• Zero dependencies — pure C, uses only Windows API (UpdateResource, GetFileVersionInfo)

Build

Requires Visual Studio (any edition) or MSVC Build Tools.

Open Developer Command Prompt and run:

cl /nologo /W4 /O2 /D_CRT_SECURE_NO_WARNINGS /Fe:petool.exe petool.c

Usage

petool.exe stub.exe -i myicon.ico # замінити іконку
petool.exe stub.exe -v C:\Windows\notepad.exe # склонувати vendor info зі стороннього додатку
petool.exe stub.exe -i myicon.ico -v C:\Windows\explorer.exe # виконати обидва одразу