The website for this program is here: https://stefansundin.github.io/elevatedstartup/
I recommend that you use Cygwin and mingw-w64 to compile.
In the Cygwin installer, install the following packages:
In the Cygwin terminal, simply run
./build.bat to compile.
To compile a 32-bit version, get the cygwin package
mingw64-i686-gcc-core and edit