SSIS Package Storage In A UNC Network Share?

Somehow I have an impression this can be done.
Somehow I tried myself by modifying MsDtsSrvr.ini.xml to point it to network UNC share, but it didn't work for me. It gave me an error

"Failed to retrieve data for this request (Microsoft.SqlServer.SmoEnum)
Additional Information: The storage localtion for the folder 'File System' cannot be accessed. (MsDtsSrvr)"

I checked my UNC permission, and I even allow full access from "everyone", but it still does not work.

I paste my MsDtsSrvr.ini.xml here too, and any help is greatly appreciated!



<?xml version="1.0" encoding="utf-8"?>
<DtsServiceConfiguration xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<StopExecutingPackagesOnShutdown>true</StopExecutingPackagesOnShutdown>
<TopLevelFolders>
<Folder xsi:type="SqlServerFolder">
<Name>MSDB</Name>
<ServerName>.</ServerName>
</Folder>
<Folder xsi:type="FileSystemFolder">
<Name>File System</Name>
<StorePath>\test01mytest</StorePath>
</Folder>
</TopLevelFolders>
</DtsServiceConfiguration>