When you create a freezepoint file, you specify directories and files to Freezepointing in the Directories and Files pane of the Freezepointing window (see Figure 15-1). Freezepointing recursively descends the directory hierarchies and identifies the most recently checked-in deltas in each SCCS history file. Freezepointing then creates a freezepoint file that consists of a list of those files and unique numerical identifiers for each delta.