[SERVICES] Add basic support for setting lpServiceStartName via RChangeServiceConfigW().

base/system/services/rpcserver.c

@@ -2179,6 +2179,22 @@ RChangeServiceConfigW(
             goto done;
     }
 
+    /* Start name and password are only used by Win32 services */
+    if (lpService->Status.dwServiceType & SERVICE_WIN32)
+    {
+        /* Write service start name */
+        if (lpServiceStartName != NULL && *lpServiceStartName != 0)
+        {
+            dwError = RegSetValueExW(hServiceKey,
+                                     L"ObjectName",
+                                     0,
+                                     REG_SZ,
+                                     (LPBYTE)lpServiceStartName,
+                                     (DWORD)((wcslen(lpServiceStartName) + 1) * sizeof(WCHAR)));
+            if (dwError != ERROR_SUCCESS)
+                goto done;
+        }
+
         if (lpPassword != NULL)
         {
             if (*(LPWSTR)lpPassword != 0)
@@ -2203,6 +2219,7 @@ RChangeServiceConfigW(
                     goto done;
             }
         }
+    }
 
 done:
     if (hServiceKey != NULL)