ArcView Tools - save these extentions as a text file in your ext32 folder, usually located at C:\ESRI\AV_GIS30\ARCVIEW\EXT32

• Imagine Image Support Extension
• JPEG Image Support Extension
• Mr Sid Image Support Extension
• TIFF Image Support Extension
• NRGIS Library Metadata
• Xtools Extension

ESRI's Free GIS Viewer, ArcExplorer

TatukGIS Free GIS Viewer

GeoExpress View - stand alone viewer for Mr. Sid Images

MrSid ExpressView Browser Plugin for Windows Web Browser - allows you to view MrSid Images in a browser window

WinZip