when clearing out your cache sub directory in  your wow folder, which is it? When I open the cache file in my wow folder, their are cache files for npc's, quests, creatures, ect, ect. Do I clear the entire main cache file or just a sub file , for example the npc cache sub file?

any help as soon as possible would be greatly appreciated. thanks

i just go into the folder and erase the WDB folder.  Works fine that way.

As the previous poster said, you can just delete the entire cache directory and WoW will rebuild it. If you only want to remove the cache of npc's, creaturecache.wdb is the file you're looking for.

thanks for the replys, their all very helpful. Just one last question. Correct me if i'm wrong but i go into my wow folder then the cache folder and the erase the wdb folder? but if i want to just erase the npc cache as stated in a reply above, u said it would say creaturecache.wdb, but the only files i have close to that look like this,go into wow folder, then cache folder , then wdb folder, then enus folder, then my choices are as follows.

 creature cache,  object cache, item cache, item name cache, item text cache, game object cache, npc cache, page text cache, quest cache, and finally 

wow cache. none of the caches on the above line say .wdb after it.  When in the caches sub directory with the above lines options, the top browser where the program name goes looks like this,  Games> World of Worldcraft > Cache> WDB > enUS     i know i sound like an idiot, but i've never used addons until now. thanks for your help, Aries

 Games\World of Warcraft\Cache\WDB\enU\creaturecache.wdb 

This is the one you want... It sounds like your Windows is set up to "hide known extensions" which is why you are not seeing a .wdb on the end.. CreatureCache is the one used for _npcscan

As the previous poster stated you have extensions hidden in Windows. This is Vista's default behavior. To change this type 'Folder Options' into the start program box in Vista. Click the 'View' tab, Make sure "Hide extensions for known file types" is unselected. Then you'll see the .wdb or whatever extension your looking for.