Astoria supports the XMetaL XML editor across a Wide Area Network (WAN). This is enabled when you install the Astoria WAN Bridge application.
Check in Add or Remove Programs to ensure they are installed on your workstation. If not present, download and install vcredist_x86 and/or vcredist_x64 from https://www.microsoft.com/en-us/download/details.aspx?id=30679 before you install the WAN Bridges.
The bridge creates a Repository menu and Astoria toolbar icons in the XMetaL user interface.