fix the alias

.appveyor.yml

@@ -22,19 +22,16 @@ install:
   - "python --version"
   - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
 
-  # Install miktex
+  # Install miktex portable
   - ps: "wget http://mirrors.ctan.org/systems/win32/miktex/setup/miktex-portable-2.9.5719.exe -OutFile ./miktex-portable.exe"
-  - "7z x miktex-portable.exe * -aot -omiktex"
-  #- cmd: basic-miktex.exe --unattended --portable --user-config=%LOCALAPPDATA%\MiKTeX\2.9 --user-data=%LOCALAPPDATA%\MiKTeX\2.9 --user-install=%LOCALAPPDATA%\MiKTeX\2.9
+  - "%COMSPEC% /c 7z x miktex-portable.exe * -aot -omiktex"
 
-  - cmd: dir .
-  - cmd: dir .\miktex
-  - cmd: dir .\miktex\miktex
   - cmd: dir .\miktex\miktex\bin
 
-  - cmd: doskey lualatex=%LOCALAPPDATA%\MiKTeX\2.9\miktex\bin\lualatex.exe $*
+  - cmd: doskey lualatex=.\miktex\miktex\bin\lualatex.exe $*
+  - cmd: set PATH=%PATH%;C:\Users\appveyor\miktex\miktex\bin\lualatex
 
-  - "lualatex --version"
+  - "lualatex.exe --version"
 
 build: false  # Not a C# project, build stuff at the test step instead.