couldn't spawn child process

[Claypole]

Hi
I've recently re-installed my pc would be pulling myn hair out if I had any with regard to the above error message.
I'm trying to a run a cgi script but all I get in the error log is couldn't spawn child process:
Having searched the web I find this is a common problem but don't seem to find a definitive answer.
Anybody?

 

[Claypole]

BTW:

1) This a Win32 implimentation
2) set "ScriptInterpreterSource registry"
3) set "AddHandler cgi-script .cgi .pl"
4) c:\perl\bin\perl.exe set as default application for file types .cgi & .pl