OK - I got nncron lite v.1.17 running on Vista 64 bit Home Premium.
I am not sure why the following procedure worked, but from recent experience, I strongly suspect it has something to do with Vista security. Here is what I did to get it to work, I can't say this is the way to do it or that it will work for you. Maybe someone who knows Vista better can comment.
- Shutdown and remove the cron service using the sc command from a cmd box with administrator privelege.
- Moved the entire cron directory from its default location - C:\Program Files (x86)\ to D:\cron\.
- Reinstall the cron service from its new location, again using sc.exe with administrator priveleges, as above.
If I get a chance, I will experiment with this and report back.[*]