Exhibit 99
 
Exhibit A
 
Joint Filing Agreement
 
     In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them a Statement of Schedule 13G (including amendments thereto) with regard to the common stock of Microvision, Inc., a Delaware corporation, and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filings. In evidence thereof, the undersigned, being duly authorized, hereby execute this Joint Filing Agreement as of August 4, 2008.
 

 
HIGHLAND CREDIT STRATEGIES FUND
 
  
   
By:  
/s/ James D. Dondero  
  
     
James D. Dondero, President 
  

 
 
Highland Capital Management, L.P.
 
By: Strand Advisors, Inc., its general partner
 
  
   
By:  
/s/ James D. Dondero  
  
     
James D. Dondero, President 
  

 
 
Strand Advisors, Inc.
 
  
 
By:  
/s/ James D. Dondero  
  
   
James D. Dondero, President 
  

 
 
James D. Dondero
 
  
 
/s/ James D. Dondero