.eps files and powerpoint

On Vista with Powerpoint 2007, file2.eps crashes powerpoint,
Once file.eps displayed, several times it crashed powerpoint.

My task is now to see if ghostscript can read a pdf or ps or eps and
convert it to png at res=300.
Do you know the incantation for that?

pdftoppm can do it and is available for linux and windows, hopefully
also on a Mac.

It is a command line utility and on linux, you would run something like

pdftoppm -png -r 300 file.pdf

to convert file.pdf to file00001.png, file00002.png etc (one png file
per page) at the resolution of 300 dpi.

HTH,

Peter

pdftoppm has many options, see its man page (or google).