Uses your existing credentials, of course, but I wanted to pass along in case others could use this:

ManagementClass processClass = new ManagementClass("\\\\" +

    remoteServer + "\\root\\CIMV2:Win32_Process");

ManagementBaseObject inParams = processClass.GetMethodParameters("Create");

inParams["CommandLine"] = program;

ManagementBaseObject outParams = processClass.InvokeMethod("Create", inParams, null);

Console.WriteLine("Started process id {0} on server {1}",

    outParams["ProcessId"], remoteServer);

 

Also, Juanya Williams (lead on the Passport team) mentions the mgmtclassgen tool which can generate strongly-typed wrapper classes.