C# code to run a batch file works in console application, but same code doesnt work in WCF Service -

this following code pretty simple , works in console application. reason not work in wcf service. directory has batch file has full permissions. can me? missing?

    try         {             processstartinfo psi = new processstartinfo();              //specify name , arguements want pass             psi.filename = configurationmanager.appsettings["batchfilelocation"];             psi.arguments = filepath;               //create new process , set starting information             process p = new process();             p.startinfo = psi;              //set can tell when process has completed             p.enableraisingevents = true;              p.start();              //wait until process has completed             while (!p.hasexited)             {                 system.threading.thread.sleep(1000);             }              //check see exit code             if (p.exitcode != 0)             {                 logger.write(p.exitcode);             }         }         catch (exception ex)         {             logger.write(ex.message);         } 

i assume iis hosted wcf service.

check identity associated application pool.

in iis 7, , 6.0 best of knowledge, networkservice, may or may not have rights batch file, sftp, etc. in 7.5 there account: default application pool id changed in iis 7.5. possible pool using other account, including machine specific one, , not domain account.