'composer' is not recognized as an internal or external command in windows server

Question

I am using windows server 2008 os. i download composer setup.exe and install to my PC . when I try composer install . I getting an error:

'composer' is not recognized as an internal or external command,

eg:-

c:\xampp\htdocs\shop>composer install
'composer' is not recognized as an internal or external command,
operable program or batch file.

My environment variable PATH is shown below:

C:\xampp\php\;C:\Users\Administrator\AppData\Roaming\Composer\vendor\bin

Answer 1

For anyone coming here from Google who are facing the same issue. I just managed to solve this issue after all the other "solutions" other people suggested didn't work.

I installed Composer properly and the Environment variable was set but it just wouldn't work.

In my case composer is installed in C:\ProgramData\ComposerSetup\bin and this is exactly what is in my PATH Environment variable. After messing around a bit trying to fix it I saw that under System variables under PATH there is something called PATHEXT I opened that and added ;.PHAR to the end of it. So it ended up like this:

And this is what my PATH is now:

I closed all file explorer windows and command prompts and started a new CMD and ran composer --version and it worked!

I hope this helps someone facing the same issue as me.