Trouble installing Pixel Mapping patch on Windows XP

I'm trying to install Eos Family Pixel Mapping v 1.0.1.9.0.15 for use with Nomad 2.2 on a PC running Windows XP. Nomad works fine, but the Pixel Mapping installer pops up an error, seen in the attached image.

Has anyone else encountered this? Any suggestions to fix it? Thanks!

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