Errors running executables: 0x800704b3 and ShellExecuteExfailed; code1203

[aserrallerios]

My server side has a bunch of exe files owned by X and permissions 755. I mount them using another user credentials (let's call it Y) into a windows drive letter.

In windows I can see all files without issues but when I execute files I get three outcomes:

• program runs successfully
• failure 1
• failure 2

failure 1:

failure 2:

I'm not able to see any pattern on those errors, but here there are some clues:

• the same folder can contain executables from the 3 categories
• when the icon of the executable has the blue-and-yellow shield mark (the icon you see when right click -> run as administrator), it will give me the failure 1
• I can get failures 1 or 2 even when the full path and file name are 100% ascii chars (no spaces or any other weird char)

All this happens under Windows 10 latest updates applied.