I´ve found that accessing the pagesetup object of an excel application uses some memory wich is not released after closing the excel object.

Try this:
1. Check the amount of memory available (setup - control Panel - system - performance)
2. run the following code

MyExcel = CreateObject("Excel.Application")
MyExcel.WorkBooks.Add()
MyExcel.ActiveSheet.PageSetup.CenterHeader = "MY HEADER "
MyExcel.ActiveWorkBook.Close(.F.)

3. Check the available memory again (it´s decreased in about 2 - 4%)
4. Run the code again except for the 3rd line
3. Check the available memory again (it´s NOT decreased from last check)

How could I put a header on my excel object programmatically without loosing memory?

Thanks for any help.