Ensure you are connected to the internet during this step so the software can validate the code with the NCH servers.
Technical Support Switch Sound File Converter - NCH Software switch audio file converter registration code install
If a website offers a "free registration code" for Switch without a purchase, it is almost certainly pirated, expired, or malware-infected. Ensure you are connected to the internet during
Some lesser-known AVs may flag NCH’s software because it uses a “packer” to compress the EXE. It’s a false positive. Verify the file’s digital signature (should be “NCH Software”). it is almost certainly pirated
Even if a crack "registers" the software, many modern cracks simply disable the pop-up but leave the 5-minute conversion limit intact. You will convert a podcast episode only to find the last 20 minutes missing.