Install two versions of Ruby on XP (kinda safely)?

getting started with Ruby: - Windows XP - installed ruby 1.9.2p0 a - rails 3.0.3.

Also working on sproutsource and have enough working right now that I don't want to mess things up. However, Heroku is one thing that does not work, I get a msvcrt-ruby18.dll error and it seems that Heroku does not work well with Ruby 1.9.开发者_Python百科2 on Windows well, but does work with Ruby 1.8.7.

So... will I screw everything up if I just install Ruby 1.8.7 (all those million slow gems I installed, that work great now).

I saw Pik which looks promising. Any advice?

I use pik and it works. You could also set up a Linux virtual box (EngineYard has built an InstantRails VM using Vagrant).

Your msvcrt-ruby18.dll error might be due to the mongrel gem or the json gem-- check out this question for how to fix it.