Hello
PersonalStorage.RootFolder.AddSubFolder(“Inbox\العربية”, True)
will result in:
Failed to create the folder. The folder with same name already exists.
Seems that when using non-ASCII characters in the subfolder names, Aspose can’t parse them correctly!
Is this kinda issue or need some special pre-process?
Thank you 
I cannot reproduce this. My code:
var pst = PersonalStorage.Create(@"test.pst", FileFormatVersion.Unicode);
pst.RootFolder.AddSubFolder(@"Inbox\العربية", true);
And the screenshort of my pst from Outlook: out.png (957 Bytes)
Hello and thank you, also sorry for the inconvenience, ok seems a bit complex, I’m getting the folder name from this method (another sdk):
It automatically decodes international folder names presented in UTF-7 Modified encoding (see IMAP4 protocol specification in RFC3501 for details on UTF-7 Modified encoding). However, the original name (not decoded from UTF-7 Modified) is still available via RawName property.
Do you think this is causing the problem? passing UTF-7 Modified encoding name to Aspose AddSubFolder method?
Does AddSubFolder method need UTF-8 encoded etc?
Thanks 
Ok I have created a sample project that reproduce this error.
I’ve copied the text from server log to the project.
Thank you
WindowsApplication3.zip (3.8 MB)
That’s not the problem at all. You first create
Dim MyInbox As Pst.FolderInfo = MyPstWriter.CreatePredefinedFolder("Inbox", StandardIpmFolder.Inbox)
And then you try to create a folder hierarchy with the same Inbox name.
MyRests = MyPstWriter.RootFolder.AddSubFolder("INBOX\العربية", True)
Replace the line above with the following
MyRests = MyInbox.AddSubFolder("العربية")
Or add code to check if the same folder exists.
Outlook is not case sensitive and will not allow you to add a folder with the same name but in a different case.
Hello and thanks, but, objection; let’s argue on the behavior!
This is not quite right considering this specific overload’s goal: to make folder hierarchy!
Almost anywhere in Windows/FTP SDKs I’ve seen that if:
Folder1
exists or not, adding:
Folder1\Folder2
Will make the inner folder anyway, if outer folder exists, will be made inside, otherwise both will be made!
When Folder1 exists, a request to make Folder1\Folder2 should not return “Folder already exists” error, IMO.
If you think it’s wise to your logic, you may consider it as an improvement!
My case: I am sending AddSubFolder requests inside a loop of reading remote imap server.
A bit complex to gain control over it, so I will check the target pst folder existence:
So regardless of your decision, please help me make wih the general idea of an algorithm of a function to get the PersonalStorage and full folder path (to be created inside Pst) and make it anyway.
Here’s my sample, which is of course is a terrible way to go, that’s why I asked your kind help for an efficient algorithm, anyway, it also shows that I could make 2 folders in the root with the same name but different cases!
WindowsApplication3.zip (3.8 MB)
Hello,
OK there’s a problem here:
PersonalStorage.RootFolder.AddSubFolder(“MyBox\2\العربية”, True)
PersonalStorage.RootFolder.AddSubFolder(“MyBox\2\2\العربية”, True)
PersonalStorage.RootFolder.AddSubFolder(“MyBox\2\العربية\العربية”, True)
These set of commands will work with no problem, even if the root folder “MyBox” pre-exists!
The problem happens when the root folder is one of those pre-defined ones, otherwise the hierarchy overload works fine!
I say the best way is to fix it internally 
How do you think?
Hello @australian.dev.nerds,
We have opened the following new ticket in our internal issue tracking system
Issue ID(s): EMAILNET-41030.
Thanks, is it considered as a bug? (I’m sure it is) and considered as a preventing/blocking high priority one?
Anyway, there’s another issue here:
Load the sample Pst and try to select the already existing folder by:
Dim PstFI As Pst.FolderInfo = PersonalStorage.RootFolder.GetSubFolder(“INBOX\2\2\العربية”, True)
PstFI will be blank!
Even if you try to get “INBOX\2” still a failure!
Issue in GetSubFolder?
pst.zip (18.5 KB)
Any chance for 22.5?