From Help - (which is a bit odd to navigate, since I would think that this item should be prominent in the index!)
Are there types of files or folders that I cannot share or synchronize?
You cannot synchronize or share the following with Live Mesh:
- Files containing obscene or copyrighted material. Copying or sharing unauthorized materials, including materials that you did not create or you do not have the rights necessary for use, is a violation of the Windows Live terms of use. See the Microsoft
Copyright Notice and FAQ.
- Files whose names begin with a tilde (~)
- desktop.ini
- thumbs.db
- Hidden files
- Windows Systems folders
- Your Desktop directory folder (for example, C:\users\[myusername]\Desktop on Windows Vista or C:\Documents and Settings\[myusername]\Desktop on Windows XP)
- Files and folders stored on removable media (such as an external hard drive, flash drive, or USB drive)
- Files and folders stored on mapped network drives
Live Mesh also blocks files that have the following file extensions:
- .bak
- .gfs
- .laccdb
- .lnk
- .mbf
- .mny
- .mpc
- .pst
- .sav <<--- this is the one you are seeing as not being synchronized...
- .tmp
- .wlx
Note
The .wlx extension represents files that have not finished synchronizing in a Live Mesh folder. Typically, the extension will go away once synchronization is complete. However, in some cases, the extension may persist if you have exceeded the storage limit
on your Live Desktop.
~ Microsoft MVP Windows Live ~ Windows Live OneCare| Live Mesh|MS Security Essentials Forums Moderator ~