Update:

I have now downloaded the driver you were using from the Edimax UK site.
Zip file: EW-7618Ug_EW-7318USg_EW-7318Ug_Ralink RT7x_070903.zip
Containing: Ralink RT7x_070903.exe

I next compared the files installed using RT7x_070903.exe with those I
installed previously. I use SFC from Win98 for this. A number of the files
contained in RT7x_070903.exe are older versions than those I installed
previously including some of the Aegis files, the RALink Utility (RaUI.exe)
and importantly, the actual wi-fi driver file itself rt24u98.sys which is
v2.01.01.0000 dated 8 November 2006 whereas the version in the file I
downloaded from the RALink site is v2.01.01.0015 dated 12 Feb 2009.

More importantly however is that the driver from the Edimax site also
includes the driver files rt73u98.sys and rt73.bin and given that the name
of your card is EW7318USG this suggest that the chipset used in your wi-fi
adapter is 73* series rather than 25* so if the updated driver from the
RALink site still doesn't work try again installing using the earlier
RT7x_070903.exe and going the Dev Manager route with the card inserted and
point it at the file rt73.inf in C:\Program Files\RALINK\RT7x Wireless LAN
Card\Driver folder rather than rt25u98.sys

What I feel is a problem is that the install seems not to complete but
rather stalls and that you are using the Task Manager to terminate the
installation. Not a good sign and not something I have been able to
replicate. What exactly happens, such as error message seen, when you
insert the adapter. What happens if you leave the installation "running"
and go and make yourself a coffee? Does it eventually complete?
--
Mike Maltby



Mike M wrote:


That appears to be an older version than the one I downloaded and
installed.
Version 12.0.0.58849 ; created

I think this may be the version of InstallShield rather than that of
the driver.

The file I downloaded from the RALink site
(http://www.ralinktech.com/ralink/Hom...t/Windows.html) was, for
98/Me/2K/XP, build 2.1.1.15:
IS_AP_STA_2500USB_D-2.1.1.15_VA-3.1.0.0_RU-2.1.1.0_VA-2.1.1.0_AU-2.0.0.0_VA-2.0.0.0_021209_0.1.0.46_Free.exe
Size 33.9 MB (35,625,327 bytes)
Date (as per RALink - 12 Feb 2009).

I've got an Edimax PCMCIA wi-fi adapter and also an Edimax PCI wi-fi
card available that I use for testing but not a usb adapter. :-(

I'd suggest your next move should be to download a copy of the updated
driver that I used from the RALink site (use the link above) and see
if you have better luck with that one.