User Phone Sync Problem / 400k Contacts created

I have a user who sync'd their iphone to exhange 2007 server and duplicated his contacts to a total of 400K

I can remove the duplicates on the cliet pc but doesnt clean them from the server

There any method to just purge the user contacts list from command line on  exchange server?
bradwcampbellAsked:
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RepilCommented:
Configure an outlook for the user; All contacts on the server will be available on the Outlook Contact folder. You can select all and delete
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bradwcampbellAuthor Commented:
User has outlook ,

U can imagine 400k contacts is ~200 mb , just selecting a section of contacts hangs or freezes the program

I tried a duplicate remover programm , It worked .. but the changes was not applied back to server .. just his .ost

Thanks
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SMHEngineeringCommented:
We have this same problem though Exch 2010, Outlook 2007 and an Iphone user with 340K contacts.
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