Hello,

The following suggestions are based on very recent experience installing XPP 9.4.0.0 on Windows Server 2019

RE: Temporary Files Directory (PDF page 8 / 60 in instwin.pdf)

The XPP installation sets the temporary directory path to C:\Windows\Temp. The documentation points out that this folder is not always writable. 

Can the out-of-the-box installation set the XYV_TMPS folder to one of the folders installation creates as part of the install (or the path used for either xz or sd_liz)?

RE: Windows OS Package (PDF page 7 / 60 in instwin.pdf)

A pre-installation check that performs the following would be a nice addition:

• check for the presence of the C++ 2017 Redistributable package and alert the installer if it's not found.
• verify that the three UAC settings are set properly:
  • User Account Control slider bar. 
  • local security policy
    (User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode) and
  • registry entry
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA