by EKDTools·Workflow
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EPassword earns its place in the 3ds Max library for a narrow but real need: keeping proprietary .max scenes locked to approved machines. The machine-based bypass is the notable part, letting you work uninterrupted on trusted hardware while forcing a password anywhere else. At version 0.90 it is an early-stage tool, so the developer's page is worth checking for current status.
EPassword is a security plugin for 3ds Max that locks your .max files behind a strong, case-sensitive password. It integrates directly into 3ds Max 2020 through 2026 and requires no scripting, so protection is set up in a couple of clicks on the machine that locks the file.
Access is controlled through a list of trusted workstations you specify when setting the password. On approved hardware you can use silent bypass, which opens files with no prompts or delays, or prompted bypass, which shows a "File locked, access granted" notice when opening on a whitelisted computer. If a file is moved to an unrecognized machine, the lock reactivates instantly and the password is required again.
Additional controls include attempt limits that close the file after a set number of incorrect password entries, and case rules that match machine names case-insensitively while keeping passwords strictly case-sensitive. Deployment is one-time: you install EPassword only on the machine that locks the file, while trusted machines bypass automatically without an install and unknown machines still prompt for the password.
EPassword is best for studios, freelancers, and any workflow that demands tight control over proprietary .max assets.
EPassword is completely free to download and use.
EPassword integrates directly into 3ds Max 2020 through 2026, covering that full range of releases. It installs without any scripting, so setup takes just a couple of clicks on the machine that locks the file. Once installed, you set a strong, case-sensitive password to encrypt your scenes and list the trusted workstations allowed to open them. Machine names are matched case-insensitively for convenience, while passwords stay strictly case-sensitive. If you run one of these supported versions, the plugin fits into your standard 3ds Max install.
EPassword uses one-time deployment, meaning you install it only on the machine that locks the file. Trusted workstations on your list bypass the lock automatically, with no install needed on those computers. Any unknown machine will still prompt for the password before the file can open. On approved hardware you can choose silent bypass, which opens files with no prompts or delays, or prompted bypass, which shows a "File locked, access granted" notice when you open on a whitelisted computer.
EPassword reactivates the lock instantly when a file is moved to an unrecognized machine. On your own approved hardware, silent bypass opens the file with no prompts, but on a machine that is not on the trusted list, the password is required again. You can also set attempt limits that specify how many incorrect password entries are allowed before the file closes. This keeps access limited to the workstations you whitelisted when the password was set, backed by a strong, case-sensitive password.
EPassword is listed as free here, so you can add it to your 3ds Max toolkit without a purchase through this entry. Licensing terms can change, so check the developer's page at ehabkdesigns.com for current details before you rely on it in production. The plugin is at version 0.90 and was last updated on May 18, 2025. Whatever the licensing, its core job stays the same: locking .max files with a case-sensitive password and machine-based access controls.
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