you can get the flow uuid from the studio [open flow-> properties tab]
Full details about tool usage:
RSFlowInvoke.exe <url> [-host -flow -inputs <inputs> -u -p -a -ep -rc -rw -t -v -verbose] -host <host> -flow <flow> name or uuid -inputs <inputs> name=value&name2=value2 -u <username> -p <password> -ep <encrypted password> -async starts the flow, but returns without waiting for the run to complete . -a <authType>[Basic, Digest] -t <timeout out (seconds)> default=100 -v || -verbose all output is written to the screen -rc <retry count> default=0 max=30 -rw <retry wait (seconds)> default=5
This program's return code can be used to determine the outcome of the invoca tion, below is a list of the return codes: 0 - The flow was run. This code makes no guarantees as to the flow's res ponse. 1 - Central responded with HTTP code 503, this normally means it lacks t he resources needed to run the flow. 2 - An Unknown internal server error occurred in Central. 3 - RSFlowInvoke was unable to authenticate against Central. 4 - The specified flow was not found, or the supplied URL was not found.
5 - A Socket Timeout occurred 6 - An unknown socket (Communication) error occurred. 7 - An unknown error occurred.