Perform Disk Wipe on Windows 7 Embedded with DS 6.9 SP6

Hi

Our customer needs a solution to wipe the disks of some clients (which in effect are some cash desks ) with Windows 7 Embedded installed.

I recommended him the following article : https://support.symantec.com/en_US/article.HOWTO9581.html

He answered me, that there is no gdisk.exe on the clients. My question is.....Does the gpdisk.exe need to be on the clients or would the clients load it from the DS-Server?
When yes, is there any other solution with the Altiris DS 6.9 for doing this?

thanks and best Regards
Samir