Disklavier

I'm biased, but I like to control my Mark IV using DKVBrowser.  :-)
The virtual PRC is compatible with recent versions of java...it's just that the launching technology that Yamaha used is no longer supported (or, at least it doesn't work.)
If you can manage to get the jar file off of your piano (search the archives of the group, as I've posted methods for fetching it in the recent past), you can launch it via an icon on your desktop (I'm talking Windows 10 here....).  
My shortcut's target (nowadays, since it changes with the java versions...) is:
"C:\Program Files (x86)\Java\jre1.8.0_91\bin\javaw.exe" -cp prc100.jar gui.prc100 -h=192.168.0.6 -p=3191 webremote -w=31910

Just about everything should be the same for you aside from the -h, since 192.168.0.6 is my piano's fixed IP address.  (You really should see about getting your piano on a fixed IP either from your router, or from the piano itself...)
Lastly, my shortcut's "Start In" is set to:
c:\users\kevin

since there's where I happen to have placed the prc100.jar that I pulled off of my piano.
If you are on a Mac, something similar can probably be achieved.
-Kevin

      From: "'George F. Litterst' PianoBench@... [disklavier]" <disklavier@yahoogroups.com>
 To: disklavier@yahoogroups.com 
 Sent: Monday, May 23, 2016 3:36 PM
 Subject: Re: [disklavier] Mark IV iso image
   
    Good morning, everyone.
Dmitry, I personally prefer to control the Mark IV with the Virtual PRC running on a laptop. The Virtual PRC responds much more quickly than the physical PRC.
Unfortunately, the Virtual PRC is not compatible with some of the most recent versions of Java. I have avoided Java updates for that reason. Unfortunately, I don’t know if the Virtual PRC is compatible with the latest version of Java. Hopefully someone else can comment about that.
Regards,PianoBench


On May 22, 2016, at 10:02 PM, dmitryos@... [disklavier] <disklavier@yahoogroups.com> wrote:
Thank you, Bill!
I was able to find a folder DNA folder where the html file with the java applet sits. Will need to adjust java version on the local but this should be manageable.
Appreciate all you help to get me in line now :)
Thank you,Dmitry