.IW File Extension

IdleWild Module

Developer Bradford Christian
2.5  |  2 Votes

What is an IW file?

An IW file is a screensaver used by IdleWild, a screensaver program included in Microsoft Entertainment Pack versions 1 through 3. It contains an animated image or effect that can be set as a Windows screensaver. IW files are similar to .SCR files.

More Information

Microsoft Entertainment Pack was a series of software packages that consisted primarily of simple computer games. However, Entertainment Packs 1 through 3 also included IdleWild, a screensaver program developed by Bradford Christian.

IdleWild allowed users to set their screensaver as one of many included IW files. Each version of IdleWild came packaged with eight IW files, which either applied an animated effect to the user's current screen or showed an original animation, such as exploding fireworks, a twinkling star field, or a sailboat race.

How to open an IW file

You can open an IW file with IdleWild (Windows). IdleWild is compatible with Windows 3 to Windows XP.

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Programs that open IW files


Chain Engineering Database File

Developer IWIS
2.0  |  1 Vote

Drive chain calculation project created with IWIS Chain Engineering software; contains chain specs, such as the length, shape, number of teeth, etc; can be tested within Chain Engineering to calculate torque, speed, and other data.

Programs that open IW files

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