Exception when save a pst as an ost

Here is exception details raised at this instruction:

pst.SaveAs(NewTargetName, FileFormat.Ost);

The exceptions seems to be raised after the file is written but before returning to the caller.

message: The method or operation is not implemented.
Data =System.Collections.ListDictionaryInternal}
Stack Trace;
at Aspose.Email.Outlook.Pst.PersonalStorage.ConvertTo(FileFormat format)
at Aspose.Email.Outlook.Pst.PersonalStorage.SaveAs(String fileName, FileFormat format)
at OutlookConverter.formMain.btnOK_Click(Object sender, EventArgs e) in C:\Users\Larry\Documents\Visual Studio 2015\Projects\OutlookConverter\OutlookConverter\Form1.cs:line 85

Hi Jon,


Thank you for writing to Aspose support team.

We have analyzed this issue and observed that its not possible to re-produce it without the sample PST. Could you please share the sample PST with us to perform testing at our end and provide assistance accordingly?

Hi Jon,


Thank you for sharing the problematic PST file. We were able to reproduce this issue at our end with the latest version of the API and have reported it to our Product team using issue id: EMAILNET-35080. We shall update you here once there is some information available about this problem.

Hi Jon,


We have analyzed this issue and are afraid to share that we cannot implement the PST->OST conversion as OST format has some specific structures whose specification is not available. We are sorry for the inconvenience and feel free to share your feedback with us.