Starting Juliavia bat file with new var ? C:\Users\PC\AppData\Local\Julia-0.7.0\bin\julia.exe -E, a=5?

Win
I am starting Julia by bat file included:

C:\Users\PC\AppData\Local\Julia-0.7.0\bin\julia.exe

Is OK

Now I need on the start from operating send any var i.e a=5 anyway … I find switcher E.

C:\Users\PC\AppData\Local\Julia-0.7.0\bin\julia.exe  -E, a=5   

But not works… .
How to insert variable ‘a’ from windows lelvel to Julia ? I cant read/write on disks in the system …:confused:

Paul