Beyond Compare Portable Exclusive Link

Thumbnails are written to the host’s Thumbs.db. In your portable BCPreferences.xml, set:

<Thumbnails Enabled="false" />

Scooter Software’s licensing model is per-user or per-machine, not per-USB-stick. If an official "exclusive portable" existed, a single license could be copied to thousands of USB drives and shared globally. That is a business nightmare. Therefore, the company explicitly designs their portable mode to be tied to the host machine, not the media.

As of late 2024, Scooter Software has released Beyond Compare 5. The new version introduces:

The method for creating a portable exclusive version of BC5 is identical to BC4, but note that BC5 requires Portable.dat v2 format (add the line [Portable] Mode=Strict inside the file). beyond compare portable exclusive

To truly claim the "Exclusive" title, you must optimize for speed and secrecy.

For large file transfers (100GB+), standard Windows copy is slow. In Beyond Compare, go to Tools → Options → Copy Handling and check "Use OS copy (for network drives)" or "Use aligned buffer". For portable exclusive, force it to use the built-in BCCopy.exe located in your USB folder.

Resolve Git merge conflicts without installing VS Code or Git GUI. Plug your USB into a colleague’s laptop, load the three files (Base, Left, Right), and merge graphically. The session saves to your USB. Thumbnails are written to the host’s Thumbs

Standard installations write to HKEY_CURRENT_USER\Software\Scooter Software. An exclusive portable version uses a .dat file or an XML configuration stored in the same directory as the executable. It redirects all registry calls to local files.

Scooter Software supports silent licensing via a file. Here is how to create your exclusive portable toolkit.

Step 1: Locate your license key You have a BC4Key.txt or license code from the purchase email. The method for creating a portable exclusive version

Step 2: Perform a Clean Portable Install Insert your USB drive (e.g., E:). Open Command Prompt as Admin and navigate to the official installer.

BCompare-4.4.6.27483.exe /portable /no desktopicon /quicklaunchicon

Choose E:\Tools\BeyondComparePortable as the destination.

Step 3: The "Exclusive" License Injection Create a file named BC4Key.txt in the portable installation directory (E:\Tools\BeyondComparePortable\). Paste your entire license key into this file.

Step 4: Registry Cleanup Script (The Real "Exclusive" Trick) To ensure zero registry write attempts, create a launcher.bat file in the root of your USB:

@echo off
set BC_PORTABLE=1
set BC_REGISTRY_DISABLE=1
start /D "E:\Tools\BeyondComparePortable" BCompare.exe %*

Result: Beyond Compare will now read the license from the text file before checking the registry. On any PC you plug into, it operates as a registered Pro version with no footprint.