Error during command authentication.

Error - unable to initiate communication with LISTSERV (errno=10061, phase=CONNECT, target=127.0.0.1:2306). The server is probably not started.

This should be closer to what you are looking for.  Save it as stay open.  It will hang out for 5 minutes after the first file has been dropped waiting for a second different file.

property file_1 : ""
property runtime : 0

on idle
	if runtime < (current date) - 5 * minutes then
		set file_1 to ""
		quit
	end if
	return 1
end idle

on open (droppedItemsList)
	set runtime to current date
	if (number of droppedItemsList) ≥ 3 then
		display dialog "This droplet accepts two files"
		return
	else if (number of droppedItemsList) = 1 then
		if file_1 = "" then
			set file_1 to first item of (droppedItemsList)
			set file_1 to POSIX path of file_1
			return
		else
			set file_2 to first item of (droppedItemsList)
			set file_2 to POSIX path of file_2
		end if
	else if (number of droppedItemsList) = 2 then
		set file_1 to first item of (droppedItemsList)
		set file_1 to POSIX path of file_1
		
		set file_2 to second item of (droppedItemsList)
		set file_2 to POSIX path of file_2
	end if
	if file_1 = file_2 then
		display dialog "You have chosen the same file. Quitting..."
		return
	end if
	
	display dialog file_1 & return & " compared with " & return & file_2
	quit
end open

-Mark

On Feb 10, 2012, at 9:53 AM, Nobumi Iyanaga wrote:

> 
> on open (droppedItemsList)
> 	if (number of droppedItemsList) ≥ 3 then
> 		display dialog "This droplet accepts two files"
> 		return
> 	else if (number of droppedItemsList) = 1 then
> 		set file_1 to first item of (droppedItemsList)
> 		set file_1 to POSIX path of file_1
> 		set file_2 to choose file with prompt "Please choose a file to compare..." of type {"txt", "rtf", "doc", "docx", "odf", "html", "xml"}
> 		set file_2 to POSIX path of file_2
> 	else if (number of droppedItemsList) = 2 then
> 		set file_1 to first item of (droppedItemsList)
> 		set file_1 to POSIX path of file_1
> 		
> 		set file_2 to second item of (droppedItemsList)
> 		set file_2 to POSIX path of file_2
> 	end if
> 	if file_1 = file_2 then
> 		display dialog "You have chosen the same file; please choose another one..."
> 		set file_2 to choose file with prompt "Please choose a file to compare... The first file is " & file_1 & "..." of type {"txt", "rtf", "doc", "docx", "odf", "html", "xml"}
> 		set file_2 to POSIX path of file_2
> 	end if
> 	if file_1 = file_2 then
> 		display dialog "You have chosen the same file. Quitting..."
> 		return
> 	end if
> 	
> 	display dialog file_1 & return & " compared with " & return & file_2
> 	return
> end open