multiple SAP-GUI version install

Hi

We are using SAPGUI 710 for our SAP ERP system, and also using SAPGUI 720 for other SAP ERP system which is in other landscape.

I have to manage both systems which are SAP ERP 6.0 and SAP ERP 6.0 EhP4.

I would like to install both versions of SAPGUI(710/720) into my one PC because of above reason.

Can I do this ?

I understand that I can connect to both systems by using one SAPGUI version either 720 or 710.

If it would be possible, I would like to use multiple version of SAPGUI for respective systems.

Thank you

Junichi Hoshi.