When using Outlook Express, I was asked if I want to compact, I said yes, at the end I found that all messages received in the last 3 months disappeared from the . I tried to compact again, it didn't recover the lost messages. Can you help me recover the lost messages?

How can I recover lost messages after compacting?

When I was using outlook express I got one message to compact, I did yes.
Then when I tried to open outlook express there some files are missing.

When I was using outlook express I got one message to compact, I did yes.
Then when I tried to open outlook express there some files are missing.
How can I recover the lost files?