For both XP-SP3 and W7 x86 with v2.0.0.986 (2010) and v1.9.1.606 (2009):
UPDATE today, Nov 11th 2010 at 4 pm.
For test reasons I ran File Tools -> File Recovery on my E:\ user disk, searching for deleted .pdf files that perhaps could be recovered.
File Recovery found 178 files, with a condition=100%. According to the user manual this means that these file can very likely be recovered.
In the same File Recovery session, the user can only once perform a UnDelete action on one or more selected files.
A second attempt (in same session) to UnDelete one or more selected files, ends in a 'kind of freeze' during which processor activity is 0%.
But no freeze application error occurs, not even after ~20 minutes. See screen shot.
Aborting this 'frozen' UnDelete action followed by a restart of File Recovery, resets the system and again one UnDelete action can be performed.
This issue occurs in both jv16PT2010 and jv16PT2009! It makes one wonder how often this tool is actually used.
To reset the system with v1.9.1.606, not only the 'File Recovery' session must be closed but also the jv16PT2009 application itself.
File Recovery_2nd attempt_'freeze'.jpg