.gadget - Windows sidebar gadget file
.DS_Store - Macintosh OS X Folder Information
.shs - Microsoft Windows 95/98 clipboard
.pf - Windows prefetch file
.sfcache - ReadyBoost cache file
.ocx - ActiveX control file
.msp - Windows Installer patch file
.pcf - Microsoft Source Profiler profiler command file
file extension ANN - Microsoft Windows Help annotation
.ANNFile extension ANN description:
Microsoft did not publish the file formats used by WinHelp.
Associated applications to file extension ANN:
Company / developer:
Microsoft Corporation
Microsoft Windows
Microsoft Windows is a family of operating systems by Microsoft. They can run on several types of platforms such as servers, embedded devices and, most typically, on personal computers. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing trend of graphical user interfaces (GUI) popularized by the Macintosh. Microsoft Windows eventually came to dominate the world's personal computer market.