How to install WebLogic AdminServer and NodeManager as windows service?

I am trying to install Weblogic adminserver as windows service but getting "Input too long" error while executing the install script.

This answer is continuation of below one:

after a lot of analysis I found that is is not authentoication issue, the problem was with boot.properties file. boot. properties file was not read properly.

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Now I would give some background- If the fusion middleware is installed as development mode the boot.properties files is created automatically inside Oracle_HOME\user_projects\domains\domainname\servers\AdminServer\security and if you look at this prop file you will find the password and username in encrypted mode. If the fusion Middleware is installed as production Mode then everytime it will ask for password and username. to avoid this perform below steps:

1. manually create file under Oracle_HOME\user_projects\domains\domainname\servers\AdminServer\security\boot.properties like mention below:

username=weblogic password=Password

Note: No spaces should be added and take care of file extension.

2. Now start weblogic from domain\bin\startWeblogic.cmd. This will encrypt you boot.properties file. check boot.proprties file if encrypted you are good to go.

Finally start the windows service whic is installed following above process. It should work fine.

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About Node manager use installNodeMgrSvc from domain\bin. Again if you get input is too long error, you must shorten JAVA_OPTIONS and then carefully edit CMDLINE param in the windows registry.