SPOOLSV.EXE Application Error

I am now on the final bit of setting up a Home network. I have managed to set up a peer-peer wireless LAN (802.11g) between two desktop PCs (both running XP Home SP1). The first PC is connected to the internet via Broadband modem and router (Dell 8300, 3.2Mhz).   I do have wireless internet working between the machines. When I run the Network Setup Wizard (to share files and printers) it all goes well until just before it finishes and a SPOOLSV.EXE Application Error is reported and then the set up looks like it is finishing (pretending to finish) off but no Home Office Lan is evident thereafter. I assume that because of this error that the set up aborts.

Any clues anybody?