I'm using Defraggler v1.11.148 and I am seeing the same problem.
Here is the error message:
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Error
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Processing aborted due to: There is not enough space on the disk.
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OK
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And here is my sys info:
OS Name: Microsoft Windows XP Professional
OS Version: 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer: Microsoft Corporation
OS Configuration: Member Workstation
OS Build Type: Uniprocessor Free
System Manufacturer: Dell Inc.
System Model: Latitude D630
System type: X86-based PC
Processor(s): 1 Processor(s) Installed.
[01]: x86 Family 6 Model 15 Stepping 10 GenuineIntel ~1994 Mhz
BIOS Version: DELL - 27d8010b
System Locale: en-us;English (United States)
Input Locale: pt-br;Portuguese (Brazil)
Time Zone: (GMT-03:00) Brasilia
Total Physical Memory: 3.070 MB
Available Physical Memory: 1.335 MB
Virtual Memory: Max Size: 2.048 MB
Virtual Memory: Available: 2.007 MB
Virtual Memory: In Use: 41 MB
Page File Location(s): C:\pagefile.sys
Hotfix(s): 110 Hotfix(s) Installed. (pretty much everything )