Now I know, what was the problem. I actually did not make windows-service-installer class public !!! Thanks Sarfraz

I already told you[^] WMI cannot be used to launch an interactive process on a remote machine and what you had to use to accomplish it. How many times are you going to ask this question in one day?? Dave Kreskowiak Microsoft MVP - Visual Basic

I already told you[^] WMI cannot be used to launch a remote interactive process. It's a huge security risk. Dave Kreskowiak Microsoft MVP - Visual Basic

PSEXEC[^]. But, the down side is that most virus scanning software considers this app to be an "unwanted" .exe. If the virus scanner sees it and doesn't like it, the scanner will stop PSEXEC from running. Dave Kreskowiak Microsoft MVP - Visual Basic

This looks like to be some thing that I actually need: ConnectionOptions objConnectionOptions = new ConnectionOptions(); objConnectionOptions.Impersonation = ImpersonationLevel.Impersonate; objConnectionOptions.EnablePrivileges = true; objConnectionOptions.Username = strUserName; objConnectionOptions.Password = strPassword; ManagementScope objManagementScope = new ManagementScope(@"\\remote-machine-name\ROOT\CIMV2", objConnectionOptions); objManagementScope.Connect(); ManagementClass processClassFinal = new ManagementClass(objManagementScope, new ManagementPath("Win32_Process"), null); ManagementBaseObject inParamsFinal = processClassFinal.GetMethodParameters("Create"); inParamsFinal["CommandLine"] = @"\\remote-machine-name\some-directory\someProgram.exe"; ManagementBaseObject outParamsFinal = processClassFinal.InvokeMethod("Create", inParamsFinal, null); But for some reason it does not work and I don't know why??????? outParamsFinal["processId"] returns null, instead of a valid processId. Is there any one who could help me in that.............. Thanks Sarfraz

Anyone who could guide me a little please..... Thanks.... Sarfraz.