Error message "No such interface", when using file /new option in SIX Trader Client

We have on occasion had some problems after installing SIX Trader programs, the fault is:

"No such interface" when you choose menu [FILE] option [NEW] in the SIX Trader Client.

Locate and remove the file COMCAT.DLL in the SYSTEM32 library

Recover a newer version of this dll from Microsoft Technet

or

copy a correct version of the dll from another SIX Trader Client PC in the network

To register this dll after the change of version, use START button, the option RUN, and write on prompt "regsvr32 comcat.dll"

or

Reinstall the SIX Trader Client.