title: Can't install PEAR on Windows 7, Structures/Graph error
body: <p>I just did a clean install of Windows 7. I've installed Apache, Mysql
  and PHP 5.3.5 all separated (not using XAMPP/others).</p>
  
  <p>I'm getting the following error in the install: ERROR: unable to unpack phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/Structures_Graph-1.0.2.tar</p>
  
  <p>The full stack trace is:</p>
  
  <pre><code>C:\Web\php-5.3.5&gt;go-pear.bat
  
  Are you installing a system-wide PEAR or a local copy?
  (system|local) [system] : system
  
  Below is a suggested file layout for your new PEAR installation.  To change individual locations, type the number in front of the directory.  Type 'all' to change all of them or simply press Enter to accept these locations.
  
   1. Installation base ($prefix)                   : C:\Web\php-5.3.5
   2. Temporary directory for processing            : C:\Web\php-5.3.5\tmp
   3. Temporary directory for downloads             : C:\Web\php-5.3.5\tmp
   4. Binaries directory                            : C:\Web\php-5.3.5
   5. PHP code directory ($php_dir)                 : C:\Web\php-5.3.5\pear
   6. Documentation directory                       : C:\Web\php-5.3.5\docs
   7. Data directory                                : C:\Web\php-5.3.5\data
   8. User-modifiable configuration files directory : C:\Web\php-5.3.5\cfg
   9. Public Web Files directory                    : C:\Web\php-5.3.5\www
  10. Tests directory                               : C:\Web\php-5.3.5\tests
  11. Name of configuration file                    : C:\Web\php-5.3.5\pear.ini
  12. Path to CLI php.exe                           : C:\Web\php-5.3.5
  
  1-12, 'all' or Enter to continue:
  Beginning install...
  Configuration written to C:\Web\php-5.3.5\pear.ini...
  Initialized registry...
  Preparing to install...
  installing phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/Archive_Tar-1.3.3.tar...
  installing phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/Console_Getopt-1.2.3.tar...
  installing phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/PEAR-1.8.0.tar...
  installing phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/Structures_Graph-1.0.2.tar...
  installing phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/XML_Util-1.2.1.tar...
  install ok: channel://pear.php.net/Archive_Tar-1.3.3
  install ok: channel://pear.php.net/Console_Getopt-1.2.3
  ERROR: unable to unpack phar://C:/Web/php-5.3.5/PEAR/go-pear.phar/PEAR/go-pear-tarballs/Structures_Graph-1.0.2.tar
  install ok: channel://pear.php.net/XML_Util-1.2.1
  install ok: channel://pear.php.net/PEAR-1.8.0
  PEAR: Optional feature webinstaller available (PEAR's web-based installer)
  PEAR: Optional feature gtkinstaller available (PEAR's PHP-GTK-based installer)
  PEAR: Optional feature gtk2installer available (PEAR's' PHP-GTK2-based installer)
  
  PEAR: To install optional features use "pear install pear/PEAR#featurename"
  
  ** WARNING! Old version found at C:\Web\php-5.3.5, please remove it or be sure t
  o use the new c:\web\php-5.3.5\pear.bat command
  
  The 'pear' command is now at your service at c:\web\php-5.3.5\pear.bat
  
  * WINDOWS ENVIRONMENT VARIABLES *
  For convenience, a REG file is available under C:\Web\php-5.3.5\PEAR_ENV.reg .
  This file creates ENV variables for the current user.
  
  Double-click this file to add it to the current user registry.
  
  C:\Web\php-5.3.5&gt;
  </code></pre>