How to install v.87 without deleting .91?

[PatrickLA_CA]

Okay I wanna play CA but it needs PR v0.87 and I have .91 and I wanna have .91 so I can play PR, and my question is how to install .87 without deleting or harming .91?

[AfterDune]

Rename mods/pr to mods/pr91
Install PR v0.87
Rename that install (mods/pr) to mods/pr087 for example
Rename mods/pr91 back to mods/pr
Then in CA's client/serverarchives.con, change the "mods/pr" parts to "mods/pr087".

Something like that anyways.

[PatrickLA_CA]

Alright, I will try, thanks