EX-99.A 2 d828255dex99a.htm EX-1 EX-1

Exhibit 1

JOINT FILING AGREEMENT

This agreement is made pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended (the “Act”) by and among the parties listed below, each referred to herein as a “Joint Filer.” The Joint Filers agree that a statement of beneficial ownership as required by Section 13(d) of the Act and the Rules thereunder may be filed on each of their behalf on Schedule 13D or Schedule 13G, as appropriate, and that said joint filing may thereafter be amended by further joint filings. The Joint Filers state that they each satisfy the requirements for making a joint filing under Rule 13d-1.

Dated: November 26, 2014

 

VECTOR CH HOLDINGS (CAYMAN), L.P.

     VECTOR ENTREPRENEUR FUND III, L.P.
By:   VECTOR CAPITAL PARTNERS IV, L.P., its general partner     By:   VECTOR CAPITAL PARTNERS III, L.P., its general partner

By:

   VECTOR CAPITAL, L.L.C., its general partner     By:   VECTOR CAPITAL, L.L.C., its general partner

By:

  

/s/ David Baylor

     By:  

/s/ David Baylor

Name:

   David Baylor     Name:   David Baylor

Title:

   Chief Operating Officer     Title:   Chief Operating Officer

By:

   VECTOR CAPITAL, LTD., its general partner     By:   VECTOR CAPITAL, L.T.D., its general partner

By:

  

/s/ David Baylor

     By:  

/s/ David Baylor

Name:

   David Baylor     Name:   David Baylor

Title:

   Director     Title:   Director

CH MERGER SUB, INC.

     VECTOR CAPITAL PARTNERS III, L.P.

By:

  

/s/ James Murray

     By:   VECTOR CAPITAL, L.L.C., its general partner

Name:

   James Murray      

Title:

   President     By:  

/s/ David Baylor

      Name:   David Baylor

VECTOR CAPITAL IV INTERNATIONAL, L.P.

     Title:   Chief Operating Officer

By:

   VECTOR CAPITAL PARTNERS IV, L.P., its general partner     By:   VECTOR CAPITAL, LTD., its general partner

By:

   VECTOR CAPITAL, L.L.C., its general partner     By:  

/s/ David Baylor

      Name:   David Baylor

By:

  

/s/ David Baylor

     Title:   Director

Name:

   David Baylor      

Title:

   Chief Operating Officer      

By:

   VECTOR CAPITAL, LTD., its general partner      

By:

  

/s/ David Baylor

      

Name:

   David Baylor      

Title:

   Director      

VECTOR CAPITAL PARTNERS IV, L.P.

By:

   VECTOR CAPITAL, L.L.C., its general partner

By:

  

/s/ David Baylor

Name:

   David Baylor

Title:

   Chief Operating Officer

By:

   VECTOR CAPITAL, LTD., its general partner

By:

  

/s/ David Baylor

Name:

   David Baylor

Title:

   Director

VECTOR CAPITAL, L.L.C.

By:

  

/s/ David Baylor

Name:

   David Baylor

Title:

   Chief Operating Officer

VECTOR CAPITAL, LTD.

By:

  

/s/ David Baylor

Name:

   David Baylor

Title:

   Director

ALEXANDER R. SLUSKY

/s/ Alexander R. Slusky

Alexander R. Slusky