Coolsoft MIDI Driver
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- Sequenzzer
- Posts: 19
- Joined: June 3, 2017 - 02:22
- coolsoft
- Posts: 1972
- Joined: March 25, 2012 - 01:19
Have you had a look at this FAQ?
Sequenzzer wrote:What I have to do EVERYTIME now is exit the coolsoft virtual midi synth through the lower right icon, then run virtual midi synth again, to which it gives me a window stating "MIDI driver is not installed, would you like to fix it?"
I say yes, it gives me a box to accept, and then it works just fine through cakewalk...
What you mean with "EVERYTIME"?
I mean, when does VMS stop working? After a Cakewalk close/reopen, or after a computer reboot?
Maybe something is resetting those registry keys upon reboot.
A dirty fix could be to deny write permissions on those keys, then look at the event viewer to find out what's trying to change their content...
- Sequenzzer
- Posts: 19
- Joined: June 3, 2017 - 02:22
First and Foremost,thank you for the quick reply...
To answer your questions,as long as the computer is up,I have no issues...If I don't shut down,and just close the lid(put the computer in hibernate or sleep and open it back up,EVEN when keeping cakewalk open,it loses the driver for some reason,and it won't sound or play...Not until I shut Cakewalk down(VMS will not allow me to close Cakewalk until it's shut down)then close the VMS down from bottom right of screen,reopen VMS..( I get the message that midi driver is not installed,and to fix?) i say yes,it reinstalls the driver and gives message to reopen file,I reopen Cakewalk..It's fine and will stay ok UNTIL computer is shut down OR i just simply close the lid and hibernate/sleep....Doing this EVEN with cakewalk already OPEN still disables the driver...I could see if I was rebooting,but it's just waking up from a hibernate state and still having issues with the driver)...
Hope this gives a little more info...It's really frustrating because before this last windows update that I cannot roll back to,it would work on reboot and also from a hibernate mode as well....Any ideas?
Thanks for all you've done so far....
- Sequenzzer
- Posts: 19
- Joined: June 3, 2017 - 02:22
Hello all
Any other suggestions/ideas as to what would cause this to happen upon hibernation of the computer? I don't think a complete uninstall/reinstallation of the VMS software is going to fix the issue...
Thanks!
- JoeRo
- Posts: 1
- Joined: January 22, 2020 - 14:10
Please beware that Windows 10 Home build 10.0.19033 is a preview build - Insider build
The latest official open build is 18363.592.
Maybe is is worth trying to use an official build.
Rgds JoeRo
- Alexey Rukin
- Posts: 6
- Joined: March 3, 2020 - 01:52
The same problem on Windows 10 Pro build 19041 (this build is actually a future RTM build!). Upon every reboot the registry key is reset to "wdmaud.drv" and the driver is lost. Not sure if it's related to Cakewalk, because it happens even if I don't start Cakewalk at all.
- Alexey Rukin
- Posts: 6
- Joined: March 3, 2020 - 01:52
Process Monitor displays this:
3:34:17.7288780 svchost.exe 2316 RegQueryValue HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\midi1 SUCCESS Type: REG_SZ, Length: 42, Data: VirtualMIDISynth.dll
3:34:17.7332640 svchost.exe 2316 RegDeleteValue HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\midi1 SUCCESS
3:34:17.7333624 svchost.exe 2316 RegDeleteValue HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Drivers32\midi1 SUCCESS
3:34:17.7372816 svchost.exe 2316 RegSetValue HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\midi1 SUCCESS Type: REG_SZ, Length: 22, Data: wdmaud.drv
3:34:17.7373767 svchost.exe 2316 RegSetValue HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Drivers32\midi1 SUCCESS Type: REG_SZ, Length: 22, Data: wdmaud.drv
Its command line is C:\WINDOWS\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder. What service is it?
SVCHOST.EXE reads this key, then removes it! On every reboot. Is it possible to prevent this behavior?
- Sequenzzer
- Posts: 19
- Joined: June 3, 2017 - 02:22
I use an older version of Cakewalk--CPA 9--Of course it's so old it has NOT been updated,I have not upgraded/changed versions or added any new software for this driver to be lost....So I know it's not related to Cakewalk...Happens upon reboot and also on hibernation...
- Alexey Rukin
- Posts: 6
- Joined: March 3, 2020 - 01:52
Wow... I also have both CWPA 9 and a modern version. I posted this bug to Windows Feedback.
- coolsoft
- Posts: 1972
- Joined: March 25, 2012 - 01:19
Alexey Rukin wrote:Its command line is C:\WINDOWS\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder. What service is it?SVCHOST.EXE reads this key, then removes it! On every reboot. Is it possible to prevent this behavior?
Well, there's a lot of results on Google about AudioEndpointBuilder, but they seem unrelated each other: https://www.google.com/search?q=AudioEndpointBuilder
Some of them point to Realtek drivers, some others to ATI HDMI audio drivers; I haven't found a common point.
Alexey Rukin wrote:SVCHOST.EXE reads this key, then removes it! On every reboot. Is it possible to prevent this behavior?
You could try to change key access permissions in Regedit.
Add a new Deny Write permission for Everyone (deny rules should win over allow ones) and reboot.
If it doesn't work, take note of original key permissions, remove them and add a single Read to Everyone.
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