Adobe Reader doesn't launch on Windows 8.1 and Windows 10

[dwhisent]

I am trying to launch Adobe Reader and display a pdf file as my install runs. This works well on Windows 7 and earlier versions, but in Window 8.1 and Windows 10, Adobe Reader starts up 2 instances (as seen in Task Manager) but nothing is ever displayed. I am using LaunchAppandWait, but have also tried LaunchApplication and other methods, all give the same result.

STRING svAdobePathExe;

function CheckIfAdobeInstalled()
STRING szKey, svAdobeExe, svAdobePath, svAdobeVerNumInstalled;
NUMBER nvType, nvSize,nReturn;

bAdobeInstalled = FALSE;

RegDBSetDefaultRoot(HKEY_CLASSES_ROOT);

szKey = "AcroExch.Document\\shell\\open\\command";
nReturn = RegDBGetKeyValueEx(szKey, "", nvType, svAdobePathExe, nvSize);
if nReturn = RETRIEVED_VALUE && svAdobePathExe != "" then
// Parse svAdobePathExe to remove extra items at end of string
LongPathToQuote(svAdobePathExe, FALSE); //Remove double quotes
ParsePath (svAdobeExe, svAdobePathExe, FILENAME_ONLY);
ParsePath (svAdobePath, svAdobePathExe, PATH);
svAdobePathExe = svAdobePath + svAdobeExe + ".exe";

if Is(FILE_EXISTS, svAdobePathExe) = TRUE then
VerGetFileVersion (svAdobePathExe, svAdobeVerNumInstalled);
FixVersionIfNecessary(svAdobeVerNumInstalled);
if VerCompare(svAdobeVerNumInstalled, MIN_ADOBE_VERSION, VERSION) = GREATER_THAN ||
VerCompare(svAdobeVerNumInstalled, MIN_ADOBE_VERSION, VERSION) = EQUALS then
bAdobeInstalled = TRUE;
endif;
endif;
endif;
return bAdobeInstalled;

end;

function Display()
STRING szCommandLine, strPDF, szProgram;

szCommandLine = strLicenseFilesDir ^ strPDF;
LongPathToQuote(szCommandLine, TRUE);
LaunchAppAndWait(svAdobePathExe, szCommandLine, NOWAIT);
...

Thanks for any help!

[dwhisent]

OK, never mind. It is a Windows 10/Adobe Reader issue. Changing Adobe Reader preference enhanced security settings to turn off "Enable protected mode at startup" lets the pdf display