How to solve ERROR #1 (0x13370001) Fatal Exception

Exe:      C:\ProgramData\Battle.net\Client\Blizzard Launcher.1845\Blizzard Launcher.exe
Time:     Sep  5, 2012 12:05:40.958 AM
User:     dorin
Computer: starmen
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This application has encountered a critical error:

ERROR #1 (0x13370001) Fatal Exception
Program:    C:\ProgramData\Battle.net\Client\Blizzard Launcher.1845\Blizzard Launcher.exe

The instruction at "0x003A69CB" referenced memory at "0x00000000".
The memory could not be read.

Project: 19140301
Build: 1845
Project Name: Blizzard Launcher.exe

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