Without the data transfer utility there isn't a way (that I've ever heard of) to convert the device files to an SSF.
Trimble data files on the device consist of about 9 individual files ( .car; .dd; .gic; .gip; .gis; .giw; .gix; .obs, and .obx) that the transfer wizard takes and converts into a single SSF that you work with in Pathfinder Office. Without that utility I believe you are out of luck.
If you are having trouble connecting to the device (but the utility itself is operational) there are other options. For instance, you can:
- Copy the files from the Windows Mobile device (\Device\My Documents\Trimble - copy everything with the filename you are looking for) to a folder on your computer
- Set up a connection to that folder with the Data Transfer Utility. (Click "Devices..." then "New..." then "GIS Folder")
- Then you connect to that folder instead of the device and complete the transfer (actually more of a conversion at this point) from there.