I got rid of all the hidden midi devices in *device manager* per Craig.  Wtf is this all about?  It doesn't happen all the time.

The ghost ports happen when a midi device gets plugged into a different USB port, and over time, you can end up with several of these hidden entries.
 
I always plug my midi devices into the same ports, so it rarely happens to me - every few months I will view hidden devices to see if I have managed to accumulate any, and I will simply delete them.  It only takes a few seconds to do.
 
Bob Bone

Yes, but despite my housekeeping i get the memory thing every now and then.  It disables all my peripherals upon start up.

Ghost ports? Hidden entries? I'm curious as to what you guys are talking about. Is there an original thread that can get me up to speed? Thanks, Pete

If you go into device manager (of course we're talking about windows here), go up to *view* and click *show hidden ports* you'll find that there are many, many ghost ports (ports that are faded).  If you get too many, per Craig Anderton it can interfere with the available memory for midi devices in SPLAT (or other versions).  Upon start up, sonar may say *not enough memory for midi peripherals* and disable them for that session.
 
I've uninstalled all my ghost ports, but still get the message occasionally.

Actually, you are usually going to need to show "non-present devices," rather than to show "hidden devices" to solve this problem. Unless you have already changed the default Windows setting, devices that are not connected will not show up as either default visible or hidden in device manager. Hidden devices generally are non plug and play devices that are not displayed by default. Non-present devices (aka ghost devices) are devices for which windows has an installed driver and connection protocol, but which is not presently connected to Windows.
 
To see non-present devices you need to open a command prompt as administrator, then type: SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
http://www.thewindowsclub...resent-devices-windows

This happens to me only when I launch PodFarm 2 before SONAR. If I launch PodFarm after SONAR, I don't get the message. Are you opening anything before SONAR?

can you fill in your sig or list what other devices you are using ?
its very hard trying to guesstimate what you have for a soundcard and/or what you have for midi devices.
 
are you running more than 1 midi device ?

chuckebaby
can you fill in your sig or list what other devices you are using ?
its very hard trying to guesstimate what you have for a soundcard and/or what you have for midi devices.
 
are you running more than 1 midi device ?

Yes,  I have two keyboards and a behringer x-touch and a shuttlepro.

slartabartfast
Actually, you are usually going to need to show "non-present devices," rather than to show "hidden devices" to solve this problem. Unless you have already changed the default Windows setting, devices that are not connected will not show up as either default visible or hidden in device manager. Hidden devices generally are non plug and play devices that are not displayed by default. Non-present devices (aka ghost devices) are devices for which windows has an installed driver and connection protocol, but which is not presently connected to Windows.
 
To see non-present devices you need to open a command prompt as administrator, then type: SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
http://www.thewindowsclub...resent-devices-windows

I tried this, didn't help.