In order for network shares to be mapped into drives and accessible within Windows services, you need to login as the NT AUTHORITY\SYSTEM account.
To do this, download the Sysinternals Suite from Microsoft, and unzip it to a directory, say C:\TEMP
The following steps assume that you've unzipped SysInternals to C:\TEMP and all the executables are in there.
If you need to remove it,
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes