I dunno what version of ntsd you're using, but when I put quotes around the executable and patchme, with this command line: D:\Games\EQ>ntsd -G -c "eb 00562565 0;g" "d:\games\eq\eqgame.exe patchme" I get (in the debug window): Cannot execute '"d:\games\eq\eqgame.exe patchme&...

Nope, just "eqgame.exe patchme"

And it still works for me. But not with ntsd. Doesn't appear to be including the "patchme" when running eqgame.exe.