Download Distance

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Go to download page for Distance 6.0 Release 1.

Download previous versions

Five versions of Distance are available for download from this site. 

Version 6.0 is the latest software, and is the recommended version for most users.  It is fully windows-based, featuring a graphical user interface that is easy to learn and use.  It also has a built-in GIS, which can be used for automated survey design.  It contains the new density surface modelling (DSM) and, a mark-recapture distance sampling (MRDS) analysis engine for the analysis of double-observer line transect surveys (using DSM and MRDS requires installation of another free software package called R).

Versions 5.0 and 4.1 are  previous version of the software - they are still available for download but we do not recommend their use.  They lack the DSM and MRDS engines and other recent bug fixes.

Version 3.5 also has a graphical user interface, but lacks many of the features of later versions.  Nevertheless, it has lower computer hardware requirements and so may be the only option for people with very ancient machines.  

Version 2.2 is an older, DOS-based program that is driven using a simple command language. It is still available mainly for historical reasons.

The following table summarizes the hardware and software requirements of the three versions. Click on the software titles to proceed to the registration and download pages, and for information about obtaining the software on CD.

Software:

 Distance 6.0 Release 1 Distance 5.0
Release 2		 Distance 4.1
Release 2

Distance 3.5
Release 6

Distance 2.2

Operating system:

 Windows XP, Vista (likely works in legacy versions too) Windows 98, Me, NT4, 2000, XP Windows 9x, Me, NT4, 2000, XP

Windows 9x, Me, NT 4, 2000

DOS

Download size:

 ~20MB1 ~20MB1 ~16MB

~7MB

~0.5MB

Installed program size:

 ~45MB1 ~45MB1 ~40MB

~10MB

~1MB

Minimum hardware requirements:

 Same as Distance 4.1 Same as Distance 4.1

 

 Realistic minimum:
Pentium II processor, 48MB RAM, 800x600 SVGA monitor with >256 colors

Recommended:
64-128MB RAM, 1024x768 monitor

 

Absolute minimum:
486DX processor, 16MB RAM, 800x600 SVGA monitor with 256 colors

Recommended minimum:
Pentium processor, 32MB RAM, 800x600 SVGA monitor with >256 colors

8086 Processor, 640K memory

Maths co-processor recommended

1These figures do not include the statistical software R, which must be installed before the density surface modelling and mark-recapture distance sampling analysis engines can be used.


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