One more thing...
Avast updated this morning & AFTER I set up the Suspect folder & uploaded the file to VT, I moved the file back the the MS Works folder & clicked properties, which was setting off Avast sirens :-) as well as creating that MSDOS icon. Well, no more sirens & no more magically created icon.
I am scanning now to see if this was an FP which has been remedied. Seems to be the case, but we'll see...
UPDATE
Just did a full scan & all in clean!!! Grrrrrrr!!! Looks like the countless hours invested were for all for an FP after all. Just for kicks, I tried to upload the lnchtour file to VT again, directly from the MSWorks folder & it uploaded okay. You were right DavidR, must have been blocked from uploading initially by Avast. Also seems as though by Avast considering this file to be infected, that for some reason the MSDOS/lnchtour icon was being created, as that is no longer happening either.
Thanks everyone! Maybe Avast will post something confirming this FP for others to see as well. I have seen MBAM clearly post info of FP's on their site in the past & I have found that to be very considerate & helpful.