I forgot the ask, why do you want to go this route rather than just downloading the apps on to the other machine ?

I have lost some of the key codes to use them.

In that case why not get some replacements

AVG (http://free.grisoft.com/doc/1) is good and free AV
A couple of good removal tools are Spybot (http://www.safer-networking.org/) and Adaware (http://www.lavasoftusa.com/software/adaware/)

ALso an on line virus and spyware scanner is Trend Housecall (http://housecall.trendmicro.com/)

Hope all this lot helps;)

Thanks for the info! I will go the TrendHousecall route for now.

Oh, I would still like to just KNOW how to slave one PC's hard drive to another! I just want to know.

How can I slave one PC to another to do a ad/spy/virus scan with MY computer?

Some more information will enable us to help you better.
Like:
*operating system of both machines
*any home network
*internet connection
*your level of knowledge
*what scanners you are thinking of using
Thanks

Some more information will enable us to help you better.
Like:
*operating system of both machines: XP PRO, XPHOME(SLAVE)
*any home network: YES, LINKSYS, BOTH ARE HARDWIRED AT THIS TIME
*internet connection: SATELLITE (DIRECWAY)
*your level of knowledge: INTERMEDIATE NEW BUSINESS OWNER
*what scanners you are thinking of using: AVG ANTI, COUNTERSPY, REG. MECH.

OH, AND I AM A QUICK LEARN WITH STEP BY STEP

Since they are networked, you can map the drive of the machine you want to scan on the other PC then just scan the drive letter. Lookup Map Network drive in XP Help for details on how.

Thank you! I will look it up and try it out. I appreciate the help.