Hive.CompactHive() You must analyze the hive before you can compact it

[Nick]

Current Date/Time: 12/3/2009 5:35:39 AM
Exec. Date/Time: 12/3/2009 5:34:45 AM
Build Date: 12/1/2009
OS: Microsoft Windows NT 5.1.2600 Service Pack 2
Language: en-US
System Uptime: 0 Days 4 Hours 9 Mins 58 Secs
Program Uptime: 00:00:02.0312500
PID: 2580
Executable: D:\aaa\Little Registry Optimizer\Little Registry Optimizer.exe
Process Name: System.Diagnostics.Process (Little Registry Optimizer)
Main Module Name: Little Registry Optimizer.exe
Module Count: 55
Thread Count: 8
Thread ID: 13
Is Admin: False
Is Debugged: False
Version: 0.3
CLR Version: 2.0.50727.1433

Type #0 System.Exception
Message #0: You must analyze the hive before you can compact it
TargetSite #0: Void CompactHive()
Source #0: Little Registry Optimizer

StackTrace:
  at Little_Registry_Optimizer.Hive.CompactHive()
  at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
  at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Threading.ThreadHelper.ThreadStart()