Keep Files External feature.
ExeOutput for PHP is a true Unicode-enabled application. Compiled applications work with Unicode too. However, the PHP runtime does not handle Unicode natively.
ASP, PHP, JSP and ASPX pages which are designed to run on a server cannot work properly in applications. They will be treated as normal web pages.
ExeOutput for PHP builds 32-bit applications. Anyway, they should work fine on 64-bit OS.
If the application is not portable, it stores its settings on the user's computer in a unique "application" folder located at: C:\Users[User name]\AppData\Roaming\ExeOutput for PHP\Userapplication[application GUID] on Windows Vista/Seven/Windows 8/Windows 8.1/Windows 10 or C:\Documents and Settings[User name]\Application Data\ExeOutput for PHP\Userapplication[application GUID] on Windows XP / NT.
This folder can be changed as explained here. If you do not want your application to leave files, you must add a reference to this folder for the uninstaller, so the latter will remove the contents inside this folder.