I've installed Ghostscript but am still unable to open EPS files in Inkscape. I'm probably not adding it (C:\Program Files\gs\gs9.22\lib;C:\Program Files\gs\gs9.22\bin) to the variables correctly but I'm unsure where to add it. These are my options when I go to System Variables>Path>Edit:
C:\Program Files\Common Files\Microsoft Shared\Windows Live
C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live
%SystemRoot%\system32
%SystemRoot%
%SystemRoot%\System32\Wbem
%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\
C:\Program Files (x86)\Windows Live\Shared
C:\Program Files (x86)\QuickTime\QTSystem\