Auditing Help

:rolleyes::rolleyes:All,
I currently run an access database that has a list of all of the workstations in our active directory. It lists the hardware and software attached to that computer . We have recently performed a survey of all of these computers to confirm all of the hardware serial numbers and make&models. We now want to carry out a survey to get a list of all of the software that is installed on the workstations.

Does anybody know whether there is a way of doing this audit remotely? Also is there a better way to do a hardware audit? Unfortunately I am limited to not purchasing software to do this for me.

Any idea's

Thank You

Keith