"The requested operation requires elevation"

[highstream]

Win 8.1 Pro x64. After years of downloading and installing XYplorer releases and betas w/o problem with Internet Download Manger, the past two days I've been getting an elevation error when trying to install from it (see screenshot). OTOH, I can install directly from the file. I thought of Permissions, but all three items in Group/User Names for both the folder and file have all permissions checked except for special permissions. Any idea what might be causing this? Thanks.

 

[KYHI]

try
right click - run as admin
or
properties - unblock

 

[highstream]

Not sure you understood my post. Are you familiar with IDM? The screenshot below shows the step before the elevation error. Clicking Open is what brings it up, where as up until earlier this week it opened IZArc and the install went from there.

Update: just happened on another compressed file (.rar), but not one with an executable (.exe). That offer any ideas?