Eclipse SDK Program "cl" is not found in PATH error

Hi I am running eclipse sdk in windows and I am trying to compile my C program. But when I build I get the following error:

**** Internal Builder is used for build               ****
cl /c /EHs /MD /Zi /nologo /Fosrc\test.obj ..\src\test.c
Internal Builder: Cannot run program "cl": Launching failed
Error: Program "cl" is not found in PATH

What is the problem?

Try appending the full path to cl to your PATH environment variable in windows http://www.itechtalk.com/thread3595.html just append it by adding a semi colon followed by the path to the existing value in PATH