[thedon]

Is there a way to tell if my server company is running windows or linux?

[Warheart]

one way is to use hlsw.
or you have to ask it.

Give your server IP:

[Warheart]

Your server is Windows
and you have to update it.

[thedon]

Can you tell me who you found out that its Windows and it needed and update?

[Warheart]

http://www.hlsw.org
i did use this software.
its Game Server Browser/Tool
you can control your server whit that.