7TSP requires patching imageres.dll and shell32.dll . The tool does this automatically, but create a system restore point first.
Let’s address the elephant in the room. YouTube videos, Reddit threads, and sketchy forums claim to offer or keygens. Downloading or using these is a terrible idea. Here’s why: Iconpackager Product Key
The safest and most reliable way to get a key is directly through the developer, Direct Purchase : You can buy a standalone license for IconPackager on the Stardock Official Store Object Desktop Subscription 7TSP requires patching imageres