After reading all the posts I found that my keyboard worked after
placing the hidserv.dll file in my winnt\system32 directory
verifying that my registry key for HKLM\System\CurrentControlSet\Services\HidServ\Parameters\ServiceDll had type REG_EXPAND_SZ
Setting the Human Interface Device Access service to Automatic
Verifying the Remote Call Procedure service was set to Automatic (some posts said the Remote Call Procedure Locator service had to be started but my keyboard worked with the service disabled).
rebooting my PC.
When I say "worked" I mean that all buttons and knobs performed the expected functions. Some posts referred to iTunes or WinAmp, but I don't have those apps. The volume knob, the silver buttons worked with Windows Media Player.
Thanks to everyone who followed up and did the leg work to get the answers.
have no hidserv.dll in system32.....