Heh ... you are having fun, aren't you.
You won't find "PL_memory_wrap" in any perl58.dll prior to version 5.8.7. My guess is that Randy has built the ppm using perl 5.8.7 and that, for an L::P::Y that's going to be run on an earlier perl 5.8.x, you need to build L::P::Y with an earlier perl 5.8.x. I could build a ppm using perl 5.8.6 and send you that (if you tell me where to send it).

As for the inability to load Low.dll, I guess that's the message you see after you acknowledge the pop-up complaining about the absence of "PL_memory_wrap" - which would indicate that it's just a consequence of that "PL_memory_wrap" error. (ie, if the "PL_memory_wrap" issue is addressed, I expect that "Low.dll" error will go away.) Other than that - what does the error message tell you that it "Can't find" ? Is pl\bin in your path ?

C:/usr/lib/XSLoader looks like a Cygwin path, rather than the location one would expect for XSLoader in a "native" Windows environment. Are you using the ppm with your Cygwin perl ? Does that work reliably ? My notion is that there could be problems in trying to use "native" Windows binaries in the Cygwin environment - but I've little experience with Cygwin and really don't know.

Cheers,
Rob