You are all right. The service will use cookies in C:\Windows, and when you use rabbitmqctl.batto request a status using a cookie in your user directory ( %USERPROFILE%).
When cookies do not match the error, look
C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-2.8.2\sbin>rabbitmqctl.bat status
Status of node 'rabbit@PC-FOOBAR' ...
Error: unable to connect to node 'rabbit@PC-FOOBAR': nodedown
DIAGNOSTICS
===========
nodes in question: ['rabbit@PC-FOOBAR']
hosts, their running nodes and ports:
- PC-FOOBAR: [{rabbit,49186},{rabbitmqctl30566,63150}]
current node details:
- node name: 'rabbitmqctl30566@pc-foobar'
- home dir: U:\
- cookie hash: Vp52cEvPP1PukagWi5S/fQ==
cookie cookie RabbitMQ Windows... %HOMEDIR% %HOMEPATH% ( , homedir U:\), RabbitMQ cookie, , . , . gotcha, , cookie ( ), ( AFAIK).
, , RabbitMQ Windows.