Knowledge Base - Technical Articles
HowTo: Add TIFF/LZW Read Support to ArcView GIS 3x
|Software:||ArcView GIS 3.1, 3.2, 3.2a, 3.3|
|Platforms:||Windows 95, 98, NT 4.0, 2000, ME, XP|
Some TIFF image files use the Lempel-Ziv-Welch (LZW) compression technology, which is patented by Unisys Corporation. The patent expired in all countries on July 7, 2004, and TIFF/LZW read capability is now freely available to ArcView GIS 3x users.
After the avopt.dll file has been copied into the \arcview\bin32 directory, ArcView GIS will read LZW compressed images.
- Download the TIFF/LZW read support DLL from the following location: Download TIFF_LZW.zip
- Unzip the TIFF_LZW.zip file into a temporary location.
- Copy avopt.dll into the \arcview\bin32 directory where ArcView is installed.
Last Modified: 8/11/2008
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