I also believe there to be another issue:
When I tried to insert the command specified above, the command box cut things off on the last "e' for "winamp.exe". My feeling is there is a limit to the length of the command (i.e. the box to insert the command into has a defined length - probably 80 characters).
Also, would $qt have to be used around each "piece" of this command?
This is not a "show-stopper". I am just testing an interface that seems to be balky between mIRC and Winamp.