I think if you're on the windows commandline, you might need a relative or absolute path like `./hello.exe`. Try powershell as well. <div class="gmail_quote">On 07/08/2016 12:04 PM, "Noah Scott Goldman" <<a href="mailto:noahsg@badmousedriver.xyz">noahsg@badmousedriver.xyz</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor="#FFFFFF" text="#000000"> I'm trying to compile hello.m which, as you might have guessed, is a "hello world" program. I'm running Windows 8.1 and installed Mercury from the binary distribution. When I run the compiler, everything seems to work fine, except there's no .exe file. I can't figure it out. > mercury --make -o hello.exe hello Making Mercury\int3s\hello.int3 Making Mercury\ints\<a href="http://hello.int" target="_blank">hello.int</a> Making Mercury\cs\hello.c Making Mercury\objs\hello.obj hello.c Making hello.exe > hello 'hello' is not recognized as an internal or external command, operable program or batch file. > hello.exe 'hello.exe' is not recognized as an internal or external command, operable program or batch file. Is this a permission issue? As far as I can tell, it produces every other file, just not the .exe. Best wishes, Noah G. </div> _______________________________________________ users mailing list <a href="mailto:users@lists.mercurylang.org">users@lists.mercurylang.org</a> <a href="https://lists.mercurylang.org/listinfo/users" rel="noreferrer" target="_blank">https://lists.mercurylang.org/listinfo/users</a> </blockquote></div>