There was a download of MAPILab Share'n'Sync 1.2.4 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
The actual developer of the free software is MAPILab Ltd. Rundll32.exe is the default file name to indicate this program's installer. The most popular version among MAPILab Share'n'Sync users is 1.2. The software belongs to Communication Tools. The program is sometimes referred to as "MAPILab SharenSync".
From the developer:
MAPILab Share`n`Sync is ideal for solving two tasks - organizing shared access to Microsoft® Outlook® folders in small organizations and synchronizing folders on several computers.
The product supports all types of Microsoft Outlook folders and items - email messages, contacts, notes, calendar, etc.
You may want to check out more software, such as MAPILab File Recovery for Office, MAPILab NNTP for Outlook or MAPILab Find and Replace for Excel, which might be related to MAPILab Share'n'Sync.