jboss expoleded deployment problem

ý am a beginner on java application ý want to exploded deployment in jboss
1.4.2

environments jdd 1.4.2 eclipse 3.3

ý create a folder xiruxe.war under
C:\jboss-4.0.2\server\default\deploycreate dynamic web project and
import from
external workspace when debug as server ý get error BUILD FAILED
C:\eclipse
3.3\plugins\org.eclipse.jst.server.generic.jboss_1.5.102.v20070608\buildfiles\jb\
oss323.xml:12:
Failed to copy
D:\dev\eclipse312\worksapace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\
\xiruxe.war
to C:\jboss- 4.0.2\server\default\deploy\xiruxe.war due to C:\jboss-
4.0.2\server\default\deploy\xiruxe.war (Access is denied)