1. Installing Bioperl Perl and BioPerl are both open source projects
Can be obtained for free via the Internet
Both work on all major platforms (Windows, Linux, Mac OSX)

2. Installing on Windows Obtain and install ActivePerl from Activestate
Open the Perl Package Manager
Open a command prompt (Start->Run)
Type C:\>ppm and run it
Add repositories
>ppm> rep add Bribes

3. Installing on Windows 4. Search for BioPerl
ppm> search Bioperl
5. This returns a numbered list of packages
ppm> install <number>
Where <number> is the number of the desired version

4. Installing on Linux/Unix/Mac
These platforms probably already have Perl installed
Download the latest release of BioPerl
Uncompress the downloaded files
>gunzip bioperl-1.5.2_102.tar.gz
>tar xvf bioperl-1.5.2_102.tar
>cd bioperl-1.5.2_102

5. Installing on Linux/Unix/Mac
Build BioPerl
>perl Build.PL
>Build test
This may fail some tests. A few failed tests may not affect your usage.
Install BioPerl
>./Build install