This after a helpfull forward from Egregius.
Original topic
Explanation:
We have a 2 sunscreens that are capable of receiving commands via 433MHz, We have a Nice Ergo 6 remote.
It works with a 52 bit rolling code (I dunno if this could be the problem)
And the main problem is that domoticz + the rfxcom RFX433E transmitter doesn't recognize it.
Research Material:
Site: http://niceforyou.com
My setup:
Synology NAS DS213j with following packages: (http://packages.synocommunity.com + http://www.jadahl.com/domoticz_beta/)
Domoticz Version: V2.4372
Domoticz Hardware: RFXCOM - RFXtrx433 USB 433.92MHz Transceiver, Version: 250
Is this enough info or do you guys need more?

Thanks in advance!