I've installed Rho-Bot but when I try run it it comes up with an error msg > Ivalid DLL
This error usually shows up when the version of half-life does not match the version of Rho-Bot. The current versions of Rho-Bot work for versions 126.96.36.199 to 188.8.131.52. If you have a version of half-life lower than this, you will need to upgrade your version of half-life.
I hope this helps!
Where do i find the standard SDK2.1 dll directory?
The standard SDK 2.1 is the source code directory. You do not need this to run Rho-Bot. But if you want to modify the Rho-Bot, you will need to download the SDK from the internet and it will set up the correct directories. Once it is installed, the path directory will be some thing like this
You would put the Rho-Bot source in that directory to recompile the Rho-Bot.