Did you look through the xpdf package at all? There is no xpdf.exe file. In the bin32/bin64 folders of the xpdf package, you'll find the following executables:
pdftotext.exe
pdftops.exe
pdftoppm.exe
pdfinfo.exe
pdfimages.exe
pdffonts.exe
pdfdetach.exe
I coloured the one you need to use.