yes...thanks ... I also found something in internet :
http://support.microsoft.com/default...roduct=win2000



but more interesting for me is how to change parameters on my oracle for his better work. maybe I should change shared_pool_size, or db_block_buffers ???
The seller of my aplications says that this parameters should be changed. But how ... now is:
db_block_buffers = 95000
sharedPool_size = 400000000

If I change this oracle and aplications works badly.