fresh install, so no mods, tried using impulse to start, sins launcher, and launching it from install directory.
only see one "Sins of a Solar Empire.exe" which is at C:\Program Files\Stardock Games\Sins of a Solar Empire
size 3.68 MB (3,867,952 bytes)
size on disk 3.69 MB (3,870,720 bytes)
size of directory is 1.49 GB (1,609,128,791 bytes)