Rule 8.3 - Adecco SA

    FORM 8.3                                    

   DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE    

             (Rule 8.3 of the City Code on Takeovers and Mergers)              

1. KEY INFORMATION

Name of person dealing (Note 1) Harris Associates L.P.                         
                                                                               
Company dealt in                Adecco SA                                      
                                                                               
Class of relevant security to   Ordinary Shares                                
which the dealings being                                                       
disclosed relate (Note 2)                                                      
                                                                               
Date of dealing                 11 September 2008                              

2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                                         Long                   Short          
                                                                               
                                Number (%)             Number (%)              
                                                                               
(1) Relevant securities         11,908,891 shares (6.2                         
                                9%)                                            
                                                                               
(2) Derivatives (other than                                                    
options)                                                                       
                                                                               
(3) Options and agreements to                                                  
purchase/sell                                                                  
                                                                               
Total                           11,908,891 shares      0 shares (0%)           
                                (6.29%)                                        

(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)

Class of relevant security:              Long                   Short          
                                                                               
                                Number (%)             Number (%)              
                                                                               
(1) Relevant securities                                                        
                                                                               
(2) Derivatives (other than                                                    
options)                                                                       
                                                                               
(3) Options and agreements to                                                  
purchase/sell                                                                  
                                                                               
Total                           0 shares (0%)          0 shares (0%)           

(c) Rights to subscribe (Note 3)

Class of relevant security:     Details                                        
                                                                               
None                                                                           

3. DEALINGS (Note 4)

(a) Purchases and sales

Purchase/sale              Number of securities      Price per unit (Note 5)   
                                                                               
Purchase                   23,500                    49.0355                   

Please note that the discrepancy in shares since our last notice dated 8/20/08
is due to an account transferring shares out.

(b) Derivatives transactions (other than options)

Product name,  Long/short (Note  Number of securities     Price per unit (Note 
               6)                (Note 7)                 5)                   
e.g. CFD                                                                       
                                                                               
None                                                                           

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

Product name, Writing,    Number of     Exercise Type, e.g. Expiry  Option     
              selling,    securities to          American,          money      
e.g. call     purchasing, which the     price    European   date               
option        varying     option                 etc.               paid/      
              etc.        relates (Note                             received   
                          7)                                        per unit   
                                                                    (Note 5)   
                                                                               
None                                                                           

(ii) Exercising

Product name, e.g. call    Number of securities      Exercise price per unit   
option                                               (Note 5)                  
                                                                               
None                                                                           

(d) Other dealings (including new securities) (Note 4)

Nature of transaction      Details                   Price per unit (if        
(Note 8)                                             applicable) (Note 5)      
                                                                               
None                                                                           

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person 
disclosing and any other person relating to the voting rights of any relevant  
securities under any option referred to on this form or relating to the voting 
rights or future acquisition or disposal of any relevant securities to which   
any derivative referred to on this form is referenced. If none, this should be 
stated.                                                                        
                                                                               
None                                                                           

Is a Supplemental Form 8 attached? (Note 9) NO

Date of disclosure                           12 September 2008                 
                                                                               
Contact name                                 Bryan Haas                        
                                                                               
Telephone number                             312-621-5318                      
                                                                               
If a connected EFM, name of offeree/offeror  Not applicable                    
with which connected                                                           
                                                                               
If a connected EFM, state nature of          Not applicable                    
connection (Note 10)                                                           

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at 
www.thetakeoverpanel.org.uk



END