i presume that u
1. transferred warcraft 3 from a location to another
location
2. open a warcraft 3 from an external drive
just correct the install path in your registry and u will be
able to run the update.
1. go to start>run>regedit
2. Hkey_current_user>Software>Blizzard
Entertainment>Warcraft III
correct the dword "InstallPath" to the path where your war3.exe
exist.
for example. "InstallPath"="D:\\games\\war3"
if your cant find "installparth" key,, create a new dwoard and
name it: InstallPath
and than insert the location of your war3.exe