The built in Windows defragmenter, Diskeeper and other third party disk
defragmentation utilities accomplish totally different results then
those achieved by GOexchange.
First, it's important to
understand that GOexchange is much more then a defragmentation tool.
GOexchange works with expert knowledge and consistency at the database
level. GOexchange can repair errors and warnings, fix minor
inconsistencies, consolidate white space, rebuild the database
itself, and ensure that group collaboration objects like mail, tasks, calendar
and other items are optimized and in tact.
Disk based defragmentation tools focus on ensuring files are laid out across a disk in a contiguous fashion. Doing so speeds up the operation of products because the files can be accessed in a more efficient manner. In addition disk based defragmentation shouldn't be necessary on the drives containing the *.EDB files because Microsoft extends the Exchange databases in various sized chunks, therefore the Exchange databases are usually not fragmented enough to warrant a defragmentation of the file system itself. You can certainly run a disk defragmentation if you like, but you typically don't see a performance gain due to using the built in and or third party disk based defragmentation tools.