Problema con Steinberg download assistant

Cannot run program "cmd"  CreateProcess error=267
java.security.PrivilegedActionException: java.io.IOException: Cannot run program "cmd" (in directory "C:\Program Files\Steinberg\Install Assistant"): CreateProcess error=267, El nombre del directorio no es válido
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:432)
	at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:411)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
	at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
	at com.sun.glass.ui.View.notifyMouse(View.java:937)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$3(WinApplication.java:178)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Cannot run program "cmd" (in directory "C:\Program Files\Steinberg\Install Assistant"): CreateProcess error=267, El nombre del directorio no es válido
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
	at net.steinberg.elicenser.download.install.WindowsInstallHelperAccess.startIfNeeded(WindowsInstallHelperAccess.kt:92)
	at net.steinberg.elicenser.download.download.aria2.DownloadServiceAria2.start(DownloadServiceAria2.kt:140)
	at net.steinberg.elicenser.download.download.DownloadService$DefaultImpls.start$default(DownloadService.kt:31)
	at net.steinberg.elicenser.download.gui.downloadchoice.DownloadChoiceController.handleActionStartDownload(DownloadChoiceController.kt:281)
	at net.steinberg.elicenser.download.gui.downloadchoice.DownloadChoiceController.handleActionButton(DownloadChoiceController.kt:151)
	at net.steinberg.elicenser.download.gui.downloadchoice.DownloadChoiceController.handleActionButton$default(DownloadChoiceController.kt:141)
	at net.steinberg.elicenser.download.gui.downloadchoice.DownloadChoiceView$root$1$4$1$3.invoke(DownloadChoiceView.kt:132)
	at net.steinberg.elicenser.download.gui.downloadchoice.DownloadChoiceView$root$1$4$1$3.invoke(DownloadChoiceView.kt:131)
	at tornadofx.ControlsKt$action$2.handle(Controls.kt:437)
	at tornadofx.ControlsKt$action$2.handle(Controls.kt)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Node.fireEvent(Node.java:8411)
	at javafx.scene.control.SplitMenuButton.fire(SplitMenuButton.java:113)
	at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
	at com.sun.javafx.scene.control.behavior.MenuButtonBehaviorBase.mouseReleased(MenuButtonBehaviorBase.java:182)
	at com.sun.javafx.scene.control.skin.MenuButtonSkinBase.lambda$new$1(MenuButtonSkinBase.java:83)
	at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Scene$MouseHandler.process(Scene.java:3760)
	at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3488)
	at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1765)
	at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2497)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
	... 9 more
Caused by: java.io.IOException: CreateProcess error=267, El nombre del directorio no es válido
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:453)
	at java.lang.ProcessImpl.start(ProcessImpl.java:139)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
	... 65 more
Muchas gracias