Can linux ssh private key files be used unchanged in putty on Windows?

I have been connecting to my site from a Mac using ssh. My M开发者_如何学Goac is dead. Now I have my key files but need to use Putty on Windows...

1 - Can I take my id_rsa file and rename it as private.ppk and use it as-is with Putty?

2 - Are there any gotchas? - because the remote server is refusing my keys. :(

---

You can't use OpenSSH keys directly with PuTTY, but if you have the puttygen tool (by the author of PuTTY), you can import them.

For directions, see the following from the PuTTY documentation: http://the.earth.li/~sgtatham/putty/0.60/htmldoc/Chapter8.html#puttygen-conversions

---

No, you need to convert them first using puttygen