Applescript: open word file on remote server

Hi experts,

I have the task to open Word files that are located on a Windows 2008 Server from an Apple iMac using Applescript.

Opening locally stored Word files is no problem, that works like:

tell application "Microsoft Word"
    open file "Macintosh HD:test.docx"
end tell


But in my case the file is located on a remote Server, so I tried:

tell application "Microsoft Word"
    open file "smb://myRemoteServer/Path/filename.docx"
end tell

trying that I get the Error message:
file \"smb://myRemoteServer/Path/filename.docx\"" does not understand the message "open"

the same Comes up when trying  
    open "smb://myRemoteServer/Path/filename.docx"
(without "file")

The path is correct: when I try to open the path in Finder, it works well:
tell application "Finder"
   open Location "smb://myRemoteServer/Path/filename.docx"
end tell

then I get the finder with the highlighted file "filename.docx"


Does anybody know how to open Word files that are located on a smb share using Applescript ???

Thanks a lot!!