No success:

SCHWERWIEGEND (BoundaryUtil): .\63240001.osm.pbf: boundary directory/zip does not exist: Gps\Data\bounds_20121019.zip
SCHWERWIEGEND (LocationHook): .\63240001.osm.pbf: LocationHook is disabled because no bounds files are available. Dir: Gps\Data\bounds_20121019.zip

"\Gps\Data\bounds_20121019.zip" is an absolute path (beginning at the root).
"Gps\Data\bounds_20121019.zip" is an relativ path (beginning at the current directory).

The first path is real that what i mean.

By the way, the Java-File-class accepts all this variants (on a windows-machine):
bounds=\Gps\Data\bounds_20121019.zip
bounds=j:\Gps\Data\bounds_20121019.zip
bounds=/Gps/Data/bounds_20121019.zip
bounds=j:/Gps/Data/bounds_20121019.zip