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Password Door (FPer.exe). Password Door is a software that protects programs on your computer.

Lock Any Windows Program Instantly with a Secure, Customizable Software Locker

Protect selected executable files from being launched on your Windows PC. Use a clean, fully modifiable interface to assign protection to any compatible EXE, set a custom password, and apply it. You can also unselect any item at any time to remove protection with ease.

Password Door is a powerful and unique software locker designed to secure individual programs rather than files or folders. It safely locks any installed software—such as MS Word, Excel, Windows Media Player, browsers, and more—without altering original program data or documents. Once a program is locked, no one can open it without entering the correct password, giving you indirect protection for all files associated with that software.

The tool automatically detects installed applications and lists them in the main window, allowing you to assign separate passwords or use one master password. If a program does not appear in the list, simply drag and drop the Password Door lock icon onto the desired application to detect it instantly. Adjustable security levels help you tailor protection based on your needs, making this solution ideal for home, office, and shared computers. Perfect for users searching for “PC security tool for Windows,” “password protect programs Windows,” or “Windows app locker for privacy.”

• Lock any Windows software or program with a custom password.
• Non-destructive protection that never modifies originals or documents.
• Automatic detection of installed programs plus drag-and-drop locking.
• Set unique or universal passwords with adjustable security levels.
• Easy enable/disable controls to add or remove protection anytime.

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