Exhibit 21.01

LIST OF SUBSIDIARIES



|                                                              |  |                                                      
|------------------------------------------------------------- |  | -----------------------------------------------------
|NAME                                                          |  | STATE OR JURISDICTION OFINCORPORATION OR
ORGANIZATION
|All Media Guide Holdings, Inc.                                |  | Delaware                                             
|All Media Guide, LLC                                          |  | Delaware                                             
|Deterrence Acquisition Ltd.                                   |  | UK                                                   
|eMeta Corporation                                             |  | Delaware                                             
|Macrovision Europe Limited                                    |  | United Kingdom                                       
|Macrovision GmbH                                              |  | Germany                                              
|Macrovision International Holding Limited Partnership         |  | Cayman Islands                                       
|Macrovision International Holdings, Inc.                      |  | Delaware                                             
|Macrovision International Licensing SARL                      |  | Switzerland                                          
|Macrovision Israel, Ltd.                                      |  | Israel                                               
|Macrovision Japan KK                                          |  | Japan                                                
|Macrovision Japan YK                                          |  | Japan                                                
|Macrovision Korea Co., Ltd.                                   |  | Korea                                                
|Macrovision Licensing & Holding B.V.                          |  | Netherlands                                          
|Macrovision Limited (formerly InstallShield Software Limited) |  | United Kingdom                                       
|Macrovision Service LLC                                       |  | Delaware                                             
|Macrovision Taiwan Ltd.                                       |  | Taiwan                                               
|Macrovision UK Limited                                        |  | United Kingdom                                       
|Mediabolic, Inc.                                              |  | Delaware                                             
|Moodlogic, Inc.                                               |  | Delaware                                             
|Moodlogic Ltd.                                                |  | Switzerland                                          
|Trymedia Systems, Inc.                                        |  | Delaware                                             
|Trymedia Systems S.L.                                         |  | Spain                                                
|Zero G Software, Inc.                                         |  | California