High CPU usage of EMclient.exe *32

Recently, I found that the CPU usage of the emclient is very high, 40-50%. Usually the CPU usage is very low. Do you have any clue for this? I used Windows 7. A quick Google search does not give much information.

Hi,
can you please download and use this tool (http://www.emclient.com/tools/emstackdump.exe) while receiving a high CPU usage from the application and send me the output to mcgregor@emclient.com?

Thank you,
Paul.

It is normal now. I think it is because I deleted many large emails to save space and the program is compacting the files and it takes time and CPU. Thanks.