Lock It Down
Lock It Down is a powerful software that locks content sensitive files and folders using advanced file encryption methods. It has options for secure mailing of encrypted files and exclusive viewing of locked files and folders. A password wallet and a file shredder are other available features.
http://lockitdown.com/lockitdown.exe - 2Mb - Download - Screenshot

Lock It Down - Free Edition
Lock It Down Free Edition is a powerful software that locks content sensitive files and folders using advanced file encryption methods. It has options for secure mailing of encrypted files and exclusive viewing of locked files and folders. A password wallet and a file shredder are other...
http://free.lockitdown.com/freelockitdown.exe - 1Mb - Download - Screenshot

Lock my Folder
Lock my Folder is a new folder password protected software which can help you lock your files, folders and disks with your personal password. Prevent people from viewing, editing, altering your folders as easy as 1-2-3. Locking files, folders, and drives is the best way to guarantee that nobody... If you do type a different password, Lock my Folder will prompt you for a correction. ... The password you enter is used for each folder and file to be locked. ... You will be asked to type in a password when you open Lock ny Folder at the first time.
http://www.qksoft.com/lock-my-folder/lockmyfolder.exe - 1Mb - Download - Screenshot

Lock Folder
Lock Folder is a new security tool that lets you lock your files and folders with your personal password. Now nobody but you can access your most sensitive information. Locking folders and files also effectively protects you from malicious programs, such as viruses, worms and trojans. ... Here is how Lock Folder works - all you have to do is to drag file or folder you want to lock to Lock Folder window, and the rest is done automatically. ... Here is the important part - Lock Folder uses the encryption standards approved by the US Government.
http://www.realclicks.com/LockFolder/LockFolder.exe - 14Kb - Download - Screenshot

Lock Folder XP
Lock Folder XP is a new security tool that lets you lock your files, folders and drives with your personal password. Now nobody but you can access your most sensitive information. Locking folders, files and drives also effectively protects you from malicious programs, such as viruses, worms and... Here is how Lock Folder XP works - all you have to do is to drag file or folder you want to lock to Lock Folder XP window, and the rest is done automatically. ... But don't think that Lock Folder XP can only be used in the corporate environment - this application is perfect for home as well.
http://www.everstrike.com/download/lockfldr.exe - 1Mb - Download - Screenshot

the Software Safe
Secret information, images, PIN-codes, passwords. Store them securely in this Safe on your PC. No more difficult codes to remember! With the personal locks, only YOU are able to open it. You can use a password, but with the personal locks, you don't need to remember difficult codes anymore! ... You may open files directly from the Safe Copy and paste or write text into 2 notebooks which may contain several pages with secret information The screen lock enables you to lock the screen with a password With the time lock, others will have serious trouble in trying to find the solution to your...
http://products.jaytown.com/SoftwareSafe/SoftwareSafe20e.exe - 6Mb - Download - Screenshot

Folder Lock
Folder Lock is a fast file-security program that can password-protect, lock, hide and encrypt any number of files, folders, drives, pictures and documents in seconds. Protected files are hidden, undeletable, inaccessible and highly secure. It hides files from kids, friends and co-workers,... Folder Lock is the most downloaded file-security program in the market today. ... Additional Options include Stealth Mode, Hacker Attempt Monitoring, Shred files, AutoLock, Auto Shutdown PC, Lock your PC, Erase PC tracks, 256-bit Blowfish Encryption and Context Menu in Explorer.
http://dl.filekicker.com/nc/file/130083-0M78/folder-lock-rd.exe - 2Mb - Download - Screenshot

WinGuard Pro
Password protect your programs, files and folders for free! Users can add password protection to any Windows program. Two types of file and folder protection, including encryption, provides you with all-in-one solution for protecting your computer from unarthorized access. ... With extra features to lock the desktop, boot keys, task keys, blocking software installations and internet access and Windows Startup. ... > Stop people installing software (Premium only): This is a must have for those of you who are sick of users installing software on your computers without your consent.
http://wgp.swmirror.com/wgpro.exe - 592Kb - Download - Screenshot

EXEsafe
EXEsafe allows you to put a lock on almost any program file, such as a game, or your office software. It uses the highly secure blowfish encryption algorithm for extra security. The lock is totally customisable - you can lock using a password, timing system, username, or a combination of all three. ... When the protected program is run, the EXEsafe lock will process all the information, and decide whether access should be allowed. ... EXEsafe features an attractive, easy to use interface, along with comprehensive documentation that describes all aspects of using the program.
http://members.aol.com/yvnnlc/exesafe.exe - 960Kb - Download - Screenshot

Colock
What is Colock? In short, Colock is a software based lock for making your software copy protected. By adding just one line of code to source code of your program, you will be able to use powerful copy protection system of Colock. How does it work? In the first run of your program, lock system,... Sell your software on Internet easily because of independency of software on distribution media and simple registration system. ... Changeable Activation Code quantity even after distributing your protected software.
http://www.pishgamsoft.com/Colock.zip - 5Mb - Download - Screenshot