anchor.diff:  		"url" = "http://downloads.sourceforge.net/sevenzip/7za920.zip";
   		"dir" = "7za";
   		"postinstall" = {
  -			function postinstall( [string]$dir ) {
  -				$script:7zip_exe = "$dir\7za.exe";
  -			};
  -			postinstall $args[0];
  +			$dir = $args[0];
  +			$script:7zip_exe = "$dir\7za.exe";
   		};
   	}
   
  
positive.code: 		"dir" = "clink";
  		"onlyFiles" = $True;
  		"postinstall" = {
  			function postinstall( [string]$dir ) {
  				ls $dir | 
  				? { $_.Attributes -eq "Directory" } | 
  				% { rmdir -Force -Path "$dir\$_"; };
  			};
  			postinstall $args[0];
  		};
  	}
  
  
negative.code: 
  $packages | % { install-package $_; } | Out-File $logfile;
  
  if ( Test-Path $enabled ) {
  	Remove-Item -Force -Path "$enabled";
  }
  
  # =========================================================================
  
  