Desperate with Network Share on Win 7

Wow.   A necessary SERVICE was disabled??     I wonder if there’s more going on on your PC then you’re aware of.  

SOMETHING turned that service off…

You could try reading here:

http://www.chicagotech.net/systemerrors.htm#System error 6118 has occurred The list of servers for this workgroup is not currently available

(Even though you fixed that error, it gives additional steps you didn’t reference which might further help.)