Hi
Just in case you haven't already done this >>
Install IL2 1946 to a folder on your hard drive not into the programs folder/s
eg: C:\IL2\
Patch order from DVD is 4.08m>4.09m>4.10m>4.101m
Turn off UAC
http://support.microsoft.com/kb/975787
Run the
Securom analyser again if your still having problems.
https://support.securom.com/analysis.php