At last I wanted to try an up to date version of sync (still running btsync 1.3!). To test I took a windows 7 64bit VM (fully updated), downloaded Resilio-Sync_x64.exe, started the installer, left all the check boxes as they were, except unchecked "start with windows".
No error message but also no visible sign that the program has started, Task Manager shows no process with name "Sync", "Resilio" or the like.
Double clicked on the desktop icon and got a (German) error message saying the program is not compatible and I should ask the software vendor to get the right 32/64bit version.
Tried to uninstall which also failed but nontheless installed the 32bit version over the 64bit install: same result (no start after installation, same error message when started manually)
I even set up a totally clean new VM (also with Windows 7 64bit) with the same problem. Only difference: Message during installation that IE 9 is missing and that the stardard browser is used instead. Probably because it was a fresh Windows with no updates installed yet. But as I said the error message when I tried to start is the same as with the fully updated Windows 7.
Something looks very broken here, on the other hand I cannot believe that Sync doesn't work with a still so common Windows version.
Any ideas?
-Michael