What VST Instrument do I need to use the VST Sound packs like pedal Steel Guitar?

Can I use these Soundpacks with any sampler or do I need to buy something from Steinberg?
Will it work with Halion ? Is there a Halion free version?
Thanks Thomas

Yes

You can find Halion expansions and other Steinberg plug-ins in this page:
Virtual Instruments & Sample Libraries | Steinberg

They can used with any DAW by downloading the free version of Halion Sonic SE, which steve linked to above.

But there’s no Pedal Steel Guitar expansion for Halion being sold by Steinberg, so I assume that you’re referring to the sounds from this page:

These ones aren’t Halion expansions. These loops and sounds are meant to be used with Steinberg’s Cubase and Nuendo DAWs only, but I believe they can be also loaded by the full version of Halion.

Thanks so much…

Unfortunately, I do not have the full version of Halion.

And only for this sound set it will be to expensive…