iphone synchronization direction

HI,

This is the case scenario:

I normally synchronize with my desktop computer moving items from my iphone to the computer using itunes.
Now, I had to synchronize with my laptop which has an old database. I had installed new applications on the iphone since then. It happenned that the laptop took control and erased my new applications. Is there a way to prevent this or to tell itunes to erase its library and fully take what it is on my iphone?

Regards
lxfdirsAsked:
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Jason C. LevineNo oneCommented:
iTunes is designed to always go from computer->device and furthermore a second computer will always attempt to "own" a device and reset it to work with that computer. So if you are transferring your library from your desktop to your laptop after every sync (or using home sharing) to the desktop you would prevent the laptop from erasing any items unless you add them after the sync.  Connecting the phone to the laptop is actually transferring ownership of the device to the laptop and resetting the phone to the copy of the library there.
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lxfdirsAuthor Commented:
jason

Appreciate you comments. Your suggestions on transferring my desktop library to the laptop or doing home sharing  will be appreciated. My desktop runs on Windows 7, my laptop is Windows XP.

Regards,
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Jason C. LevineNo oneCommented:
Sorry, what exactly are you asking?
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lxfdirsAuthor Commented:
Will transfering my desktop library to the laptop a matter of copying files or is there a special procedure?
If files to be transferred which are them and where are they located. Windows 7, Windows XP.


Regards,
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Jason C. LevineNo oneCommented:
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Michael DyerSenior Systems Support AnalystCommented:
You really have to pick one source to sync your iPhone with.  If you want to start syncing your iPhone with your laptop, you can move your iPhone library to the laptop.  Here are very detailed instructions on moving your iTunes library.

http://www.ilounge.com/index.php/articles/comments/moving-your-itunes-library-to-a-new-hard-drive/

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