This limitation is caused by the Enhanced UI option, if you select a mapped
drive as the installation folder. For example if we set APPDIR to
Z:\\ , the value is written in the registry would be something like
\\storage\\shared.
The workaround is to create on the dialog where APPDIR is set (e.g.
FolderDlg) an event that will set another property to the value of APPDIR and then use
that property to write the registry's value, e.g.:
Name: MY_OTHER_PROPERTY
Value: [APPDIR]
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