[texworks] where does python27.dll come from?

[Akira Kakuto]

Dear Alain Delmotte,

> I downloaded and unzipped, but TeXworks doesn't start, even 
> if I want to start it as administrator.

python27.dll is not necessary, but the Lib directory and
its contents seem to be necessary. If I recover Lib, then
TeXworks-w32-0.5-r836.zip works fine on Windows XP
without python27.dll.

Thanks,
Akira