Hi all.
I'm new to the forums, this is my first post.
I bought CCD1.4 around a year ago, I updated to ver.1.5 today.
Is it possible to run both versions (1.5 & 1.4) on one PC with one serial number?
I like the new features of ver.1.5, but I also want to be able to play offline, hence i still want 1.4 on my computer, esp. when my internet is down (which is a lot of times!

)
Any input would be appreciated.
Thanks!
EDIT:
Uninstalled CCD1.5, Installed CCD1.4 and activate, install CCD1.5 no activation required
ran and exit CCD1.4, ran and exit CCD1.5, still good
run CCD1.4 after ver1.5, I get an error message.
renamed my documents>forward development into forward dev1.5
CCD1.4 now runs, new forward development folder, but if i run CCD1.5 afterwards, i get another error message
I guess there's an update in 1.5 that's not compatible with 1.4
I just switch names of the forward development folder depending on which version I'll use.
Currently I have forward dev_1.4BACKUP, forward dev_1.5BACKUP, so if i forget to rename, i won't lose my progress, esp. in 1.4
Thanks for this great simulator!