Masker
Hide files and have them automatically encrypted! MASKER is able to hide your sensitive files within another file (carrier file), which is absolute discrete and looks like regular file without changing the exterior impression. MASKER encrypts files using strong encryption algorithms. ... As a carrier file you can use: image files (bmp, gif, jpg, tif); audio files (wav, mid, snd, mp3); program files (exe, dll, ocx); video files (avi, mov, mpg, asf); For example, you could create a picture file that looks and behaves exactly like any other picture file but contains hidden encrypted files.
http://www.softpuls.com/masker/msksetup.exe - 2Mb - Download - Screenshot

Encrypt Text in Picture
Encrypt Text in Picture - can hide the text into a picture. Support jpg, jpeg and bmp image files. You can send a common picture to anyone with the special classified message.
http://www.acezip.net/etip121.exe - 2Mb - Download - Screenshot

Hide From Outsiders
You look business, confidential reports or diagrams at office with a plenty of employees and clients? - HIDE FROM OUTSIDERS will easily and quickly hide the confidential information on your screen from viewing undesirable persons or competitors. You it was required to work with private data in a... - HIDE FROM OUTSIDERS using one pressing of the button will hide your windows from person who has casually approached to you. ... - HIDE FROM OUTSIDERS, imperceptible movement of a finger, will hide your adult pictures from casually run up child.
http://www.hidefromoutsiders.com/download/SetupHFO.exe - 508Kb - Download - Screenshot

Storm
Storm allows you to hide your confidential files and compressed folders in regular JPEG picture files. Your information is encrypted and hidden inside the JPEG file without affecting the picture's appearance, quality or dimensions. Storm is very easy to use and it does not require a password. ... It is compatible with all modern Windows versions and it is distributed as freeware.
http://www.thegreatpuzzle.com/storm.zip - 1Mb - Download - Screenshot

HideInPicture
HideInPicture enables you to encrypt and hide any type of Files inside of Pictures. This way your files are hidden in plain sight, and in a place that no one would even think to look. HideInPicture's purpose is to hide any data in a way that the viewer does not recognize any difference. ... A wizard will guide you through the necessary steps needed to protect your data. ... Nobody will suspect hidden data inside the image. ... You also can create complete Web galleries with your hidden files, ready for upload, with just a few mouse clicks.
http://www.braintwist-studios.com/download/hideinpicsetup.exe - 979Kb - Download - Screenshot

Steganography
Steganography: an excellent method of embedding information on the contents of the file within another file! Make your secrets invisible in just 3 quick steps! Steganography enables you to use digital data hiding techniques (steganography) to hide files and messages within other files... This allows you to encrypt sensitive information, while at the same time hiding it in a file that will not look suspicious, so nobody even knows that there is any encrypted information. ... com . ... securekit.
http://www.securekit.com/sg.exe - 1Mb - Download - Screenshot

VirtualTour
Ever want to show your place to the world? This is a fun and easy way to make a tour. Just take some pictures around your house with your digital camera. Stand in your front hall, take a picture, turn 90 degrees, take another picture, turn 90 degrees, take a third picture, and so on-- all... This script can keep track of visitors, allowing you to 'hide' objects in rooms that can be picked up; it remembers what room returning visitors were in, what they had in their posession, and more. ... The directions are laid out in the script, so when you download it, take a look.
http://www.intelliscript.net/cgi-bin/FileCABINET.pl?download=11&.zip - 126Kb - Download - Screenshot

Picrypter
Picrypter is an encryption tool for 24-bit image files. This program uses the unique keys to encode/decode pictures. To make a picture hidden, Picrypter encode every single pixel of an image. In fact, it changes the color of them. The result is the indecipherable dump of pixels. ... So, the encoded file is still an image file and can be viewed in any picture viewer or editor. ... After decoding, the picture gets back without any distortion. ... It cannot be compressed as JPEG or other picture compression format, because after compression the pixels' colors are some changed and thus cannot...
http://dgreensoft.chat.ru/pcrdsetup.exe - 538Kb - Download - Screenshot

SuperStorm
SuperStorm allows you to hide your confidential files and folders in a wide variety of media files such as pictures, audio, video, executable programs among many other file types. Your secret file will be physically wiped out and merged inside the media file. ... The freeware edition of SuperStorm can hide any file (200KB max. ... In fact, SuperStorm doesn? ... In addition, you can set a password to restrict access to SuperStorm and if any security settings are tampered or damaged, the program will repair them automatically.
http://www.thegreatpuzzle.com/superstorm.zip - 1Mb - Download - Screenshot

Smart Wallpaper Lite
Smart Wallpaper Lite is a powerful and easy-to-use wallpaper manager for Windows 98/ME/NT/2000/XP. This tool will automatically change wallpaper on each Windows startup or at specified time intervals. This application is very simple to use. You can configure all options in the main window. ... Intelligent "Auto" mode: allows the program to adjust for screen size, picture size, picture aspect ratio, and placement of wallpaper 6. ... (In the "Random" mode, you won't see the same picture twice until all pictures have been displayed.
http://www.ectosoft.com/swlite.zip - 2Mb - Download - Screenshot