Hi,

I have MCDT installed and I wanted to look at some 6E and CL so I requested from Mirus a MC Demo.

If I installed the Demo would my fee MCDT be replace by the installation.

I dont want to loose MCDT cause I dont have the .exe file if something goes wrong.

No, they are still separate programs. You can still use your MCDT as much as you want, it's yours forever.