|"Has anyone tried to associate a file with no extension? With or without dot."|
I tried it before posting, it worked for me on xp home sp3 and it worked for me.
"Yes, tried and failed. It would be great if it was possible."
This worked for me:
So did adding a new type in folder options with just a single dot.
The folder options method doesn't behave properly for me, but it does hold a basic association. The advanced option was unusable...
I wouldn't be surprised if these methods caused issues, especially since they seem to hit and miss.....