I have no problems getting the PPD 
<SOFTPKG NAME="Math-GMP" VERSION="2,04,0,0">
 <TITLE>Math-GMP</TITLE> 
 <ABSTRACT>High speed arbitrary size integer math </ABSTRACT> 
 <AUTHOR>Chip Turner</AUTHOR> 
 <IMPLEMENTATION>
  <OS NAME="MSWin32" /> 
  <ARCHITECTURE NAME="MSWin32-x86-multi-thread-5.8" /> 
  <CODEBASE HREF="http://theoryx5.uwinnipeg.ca/ppms/x86/Math-GMP.tar.g
+z" /> 
  <PROVIDE NAME="Math::GMP" VERSION="2.04" /> 
 </IMPLEMENTATION>
</SOFTPKG>

[download]

And I had no problems installing it (ActivePerl 5.8.8). 

>ppm install http://theoryx5.uwinnipeg.ca/ppms/Math-GMP.ppd
Downloading Math-GMP-2.04...done
Unpacking Math-GMP-2.04...done
Generating HTML for Math-GMP-2.04...done
Updating files in site area...done
   5 files installed

>perl -le"use Math::GMP; print Math::GMP->VERSION"
2.04

[download]

I think installation consists of unzipping and generating docs. If you're ok with skipping the latter, just do the former.

In reply to Re^3: successfull Installed module vanished by ikegami
in thread successfull Installed module vanished by BluePerl

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