Why not you try manual method for this? As it is easy and effective too. You may follow this step by step process.

• Open Microsoft Outlook.
• Open Windows Live Mail.
• In the Windows Live Mail window, click the File button and select Export and then select Email messages.
• Select Microsoft Exchange as the format and then click Next.
• You will see a message that all email will be exported to Microsoft Outlook or Microsoft Exchange, click Ok to continue.
• You can export all email folders or select the appropriate folders that you want to export by using the Select folders option.
• After you select the appropriate option, click OK and wait for the export process to be completed.
• When the Export Completedialog box appears, click Finish.

Note: This process can take some time , depending on the number of messages that you are exporting.

Courtesy: EasyTechTools Blog: Convert DBX to PST Format