Open the command prompt. From the command prompt, browse to the directory where the jenkins.war file is present. Run the following command
D:\>Java –jar Jenkins.war
After the command is run, various tasks will run, one of which is the extraction of the war file which is done by an embedded webserver called winstone.
D:\>Java –jar Jenkins.war
Running from: D:\jenkins.war
Webroot: $user.home/ .jenkins
Sep 29, 2015 4:10:46 PM winstone.Logger logInternal
INFO: Beginning extraction from war file
Once the processing is complete without major errors, the following line will come in the output of the command prompt.
INFO: Jenkins is fully up and running