Installation of DirectX 9.0c blocks while copying qedit.dll

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everything's in the subject.

 

I've got XP Home SP1

P4 2,8 512MB

Ati Radeon IGP 345M

 

 

Help !! please

 

I've tried everything found on the net but it's not working

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thank u but it still doesn't work

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still doesn't work

 

now it blocks 5 sec before while copying qdv.dll