Command not found error

I am trying to type the make command at the command-prompt, but I keep getting the following error:

'make' is not recognized as an internal or external command, operable or batch file.

I am a novice and have no clue about these things, but I read lots of websites about this problem and I tried to follow their advices, but it's still not working.

I am using a Dell laptop with Windows 7 64-bit. I am running it from this folder:

C:\Users\Jenn\Documents\PhD\Software\trimAl\source

My path is

C:\Perl\site\bin
C:\Perl\bin
%SystemRoot%\system32
%SystemRoot%
%SystemRoot%\System32\Wbem
%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\
c:\Program Files\WIDCOMM\Bluetooth Software\
c:\Program Files\WIDCOMM\Bluetooth Software\syswow64
C:\Program Files\Dell\DW WLAN Card\Driver
C:\Program Files (x86)\Common Files\Roxio Shared\DLLShared\

Plan A

Find where make.exe is hiding and add it to your PATH.

Plan B

Install make (for example this one)

Plan B.2

Install the compilers and other stuff that are also usually needed for make to do anything useful. Have a look in your Makefile in C:\Users\Jenn\Documents\PhD\Software\trimAl\source or read the documentation for whatever you have downloaded in there.

Plan C

Find a precompiled Windows executable (preferably with a self-installer) of whatever thing you seek instead.

There is no make command in Windows. If you have some versions of Visual Studio installed, you may have a program named nmake, which is Windows' version of the classic UNIX make utility.