[V6-12v] Driver side door window - cable or regulator?

[Jim Griffin]

About a week ago, the driver side window on my '92 100S stopped working, 
after I heard a crunch after opening it all the way.

Tonight, I managed to take the door panel off, and found that the cable had 
snapped.

Can just the cable be replaced... or do I have to buy the whole window 
regulator?

Has anyone done this job? Easy? Difficult? Any tips/suggestions or cautions 
that I should know about?

Thanks.

Jim