c# - WCF hosted on Windows Service throw FaultException -

c# - WCF hosted on Windows Service throw FaultException -

good morning,

i trying start process through wcf hosted windows service. problem if run process, throw exception. illustration message shown. can problem?

scenaro 1:

i have wcf service 2 methods: one returns string "hello world". second returns nil code within is: process.start("c:\"); i have windows service reference wcf project. onstart method creates host this service installed on computer i have console application represents client this project has service reference windows service project (to host) now create client instance , phone call function described above

result: "hello world" shown on console. process not started - throws faultexception.

scenario 2:

second thing tried is:

wcf service above console application reference wcf project. (host created here) console application represents client. , calling methods client.

result: "hello world" shown , process started without problem.

i want run first scenario. think can security problem.

thanks help.

edit: added screenshots.

c# .net windows wcf service