I think (but am not 100% sure) that because you got multiple matches for your search, you need to be specific about which one you want, ie: 
install 1

[download]

Anyway, that works for me: 

ppm> search List-MoreUtils
Searching in Active Repositories
  1. List-MoreUtils [0.21] Provide the stuff missing in List::Util
  2. List-MoreUtils [0.21] List-MoreUtils
  3. List-MoreUtils [0.16] Provide the stuff missing in List::Util
  4. List-MoreUtils [0.16] Provide the stuff missing in List::Util
ppm> install 1
Package 1:
====================
Install 'List-MoreUtils' version 0.21 in ActivePerl 5.8.7.813.
====================
Downloaded 38527 bytes.
Extracting 9/9: blib/arch/auto/List/MoreUtils/MoreUtils.lib
Installing C:\Perl\site\lib\auto\List\MoreUtils\MoreUtils.bs
Installing C:\Perl\site\lib\auto\List\MoreUtils\MoreUtils.dll
Installing C:\Perl\site\lib\auto\List\MoreUtils\MoreUtils.exp
Installing C:\Perl\site\lib\auto\List\MoreUtils\MoreUtils.lib
Installing C:\Perl\html\site\lib\List\MoreUtils.html
Files found in blib\arch: installing files in blib\lib into architectu
+re depende
nt library tree
Installing C:\Perl\site\lib\List\MoreUtils.pm
Successfully installed List-MoreUtils version 0.21 in ActivePerl 5.8.7
+.813.

[download]

Cheers,
Darren :)

In reply to Re: Inconsistency in PPM "search" and "install" by McDarren
in thread Inconsistency in PPM "search" and "install" by monkfan

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