Hi
Copy your file (Installer.exe) in "mt.exe" installation folder (Here is: C:\Program Files (x86)\Windows Kits\10.0.22621.0\x86) then open CMD as administrator, browse to "mt.exe" folder:
>> cd C:\Program Files (x86)\Windows Kits\10.0.22621.0\x86
and run this:
>> mt.exe -inputresource: Installer.exe -out:Installer.manifest
Manifest file will be created in in "C:\Program Files (x86)\Windows Kits\10.0.22621.0\x86" (Actually "mt.exe" installation folder).
To be noticed: You should create manifest file from exe file, then edit it (change input="asInvoker" to "requireAdministrator".) then use it to build exe file again.