The command line arguments cannot specify…

Hi,
I have installed Win XP to my new box containing AMD 64 bit processor.
But I encounter following problem when try to run 32 bit programs. I know, 32 bit programs run easily in 64 bit system.
Does there need any configuration for the compatibility. Please share your opinion.

WinDbg:6.11.0001.404 AMD64
The command line arguments cannot specify more than one kind of debugging to start
OK
Love,
Elezabeth
