Analyzer error message: failed to Load file or assembly "Microsoft. Office. InterOP. Excel, version = 11.0.0.0,

Analyzer error message: failed to Load file or assembly "Microsoft. Office. InterOP. Excel, version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c" or one of its dependencies. The system cannot find the specified file.
Source error:
Row 36: <add Assembly = "crystaldecisions. Enterprise. framework,
Version = 10.2.3600.0, culture = neutral, publickeytoken = 692fbea5521e1304 "/>
Row 37: <add Assembly = "crystaldecisions. Enterprise. infostore,
Version = 10.2.3600.0, culture = neutral, publickeytoken = 692fbea5521e1304 "/>
Row 38: <add Assembly = "Microsoft. Office. InterOP. Excel,
Version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c "/>
Row 39: <add Assembly = "Microsoft. Office. InterOP. owc11,
Version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c "/> </assemblies>
Row 40: <compilers>

Source File: e:/web/Web. config row: 38
Analyzer error message: failed to Load file or assembly "Microsoft. Office. InterOP. Excel, version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c" or one of its dependencies. The system cannot find the specified file.
Source error:
Row 36: <add Assembly = "crystaldecisions. Enterprise. framework,
Version = 10.2.3600.0, culture = neutral, publickeytoken = 692fbea5521e1304 "/>
Row 37: <add Assembly = "crystaldecisions. Enterprise. infostore,
Version = 10.2.3600.0, culture = neutral, publickeytoken = 692fbea5521e1304 "/>
Row 38: <add Assembly = "Microsoft. Office. InterOP. Excel,
Version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c "/>
Row 39: <add Assembly = "Microsoft. Office. InterOP. owc11,
Version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c "/> </assemblies>
Row 40: <compilers>

Source File: e:/web/Web. config row: 38

Assembly Loading trace: The following information helps determine the assembly "Microsoft. Office. InterOP. Excel, version = 11.0.0.0,
Culture = neutral, publickeytoken = 71e9bce111e9429c "cannot be loaded.

Warning assembly binding logging is disabled.
To enable the Assembly Binding failure log, set the registry value to [HKLM/software/Microsoft/Fusion! Enablelog]

(DWORD) is set to 1.
Note: There will be some performance loss associated with the Assembly Binding failure log.
To disable this function, remove the registry value [HKLM/software/Microsoft/Fusion! Enablelog]

Cause:
Office2003 is not installed on the server

Solution:
Install office2003 first
Then install vstor.exe
Install the main InterOP components of Office 2003
O2003pia. exe
Restart IIS!