Features and restrictions:
* optimal algorithm
* support basic include/exclude filters
* exclude zero-length files and files that are placed in MFT
* full support of compressed files processing
* Compact command optimize free space disposition
* generate useful html report
* Not support volumes with more than 4.294.967.295 clusters
* not work on NT 4.0
* very fast defragmentation, because engine is kernel mode driver and has optimal algorithm.
* very small engine written in pure C language.
* nice graphical interface - compact and comfortable.
下载: http://nchc.dl.sourceforge.net/sourceforge/ultradefrag/ultradefrag-1.0.1.bin.i386.exe
官方主页：http://sourceforge.net/projects/ultradefrag/
* optimal algorithm
* support basic include/exclude filters
* exclude zero-length files and files that are placed in MFT
* full support of compressed files processing
* Compact command optimize free space disposition
* generate useful html report
* Not support volumes with more than 4.294.967.295 clusters
* not work on NT 4.0
* very fast defragmentation, because engine is kernel mode driver and has optimal algorithm.
* very small engine written in pure C language.
* nice graphical interface - compact and comfortable.
下载: http://nchc.dl.sourceforge.net/sourceforge/ultradefrag/ultradefrag-1.0.1.bin.i386.exe官方主页：http://sourceforge.net/projects/ultradefrag/