unmsys--file-name to solve it?Is this problem still happening? If so, did you try using
/C/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/admin/unidata/IVD_Sequences.txt
Opening input file: no such file or directory, c:/C/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/admin/unidata/IVD_Sequences.txt