Access Is Denied Error

<div class="IPBDescription">Access is denied !!!</div> Every time i try to run my map i get the response that i pasted. please... help... <!--emo&???--><img src='http://www.unknownworlds.com/forums/html//emoticons/confused.gif' border='0' style='vertical-align:middle' alt='confused.gif' /><!--endemo-->

** Executing...
** Command:
** Parameters: "c:\------ school ------ work ------\max\ns_practice018"

* Could not execute the command:
"c:\------ school ------ work ------\max\ns_practice018"
* Windows gave the error message:
"Access is denied."

** Executing...
** Command:
** Parameters: c:\------~3\max\NS_PRA~2

* Could not execute the command:
c:\------~3\max\NS_PRA~2
* Windows gave the error message:
"Access is denied."

** Executing...
** Command:
** Parameters: c:\------~3\max\NS_PRA~2

* Could not execute the command:
c:\------~3\max\NS_PRA~2
* Windows gave the error message:
"Access is denied."

** Executing...
** Command:
** Parameters: c:\------~3\max\NS_PRA~2

* Could not execute the command:
c:\------~3\max\NS_PRA~2
* Windows gave the error message:
"Access is denied."

** Executing...
** Command: Copy File
** Parameters: "c:\------ school ------ work ------\max\ns_practice018.bsp" "\ns_practice018.bsp"

The command failed. Windows reported the error:
"The system cannot find the file specified."