Installation failure

Hi everyone, I tried to install latest version of Comodo Backup ( on Windows Server 2008 Standard SP2 32bit.
Installation suddenly failed due to an appcrash:

Problem signature:
Problem Event Name: APPCRASH
Application Name: CB_setup.exe
Application Version:
Application Timestamp: 4bc06cd3
Fault Module Name: feedback.dll
Fault Module Version:
Fault Module Timestamp: 50f3f0cc
Exception Code: c0000005
Exception Offset: 00003d5a
OS Version: 6.0.6002.
Locale ID: 1040
Additional Information 1: d10c
Additional Information 2: f079771fb2053f246d56e74678c32998
Additional Information 3: 5905
Additional Information 4: 0ea26bb74c67f1f4f2db9d9ba25a4c99

Can anyone help, please ?
I previously installed the same version of CB on a virtual machine, Windows Web Server 2008 R2 SP1 64bit, and it worked fineā€¦
Thanks a lot