PST Walker follows a tiered licensing model based on the number of users and specific feature needs: MSG EML Viewer Licenses & Pricing - PST Walker Software

PST Walker offers several license tiers depending on your needs: License Type Key Features Personal use 15 emails per folder export limit. Pro Non-commercial Lifetime license, up to 20 GB file support. Business Single organization Deletion recovery, up to 50 GB files. Technician Multi-organization Unlimited file size, ultimate feature set. A Helpful Story: The Forensic "In a Pinch" Save

: Upon purchase via the official order page , users receive a shared serial number (an alphanumeric key) to activate their license.