DSP Robotics Support

I'm try to require custom.so created with ruby 1.9.3p429, but get an error: incompatible library version.
Which version of Ruby is use FlowStone 3.0 and what I need to do to make it compatible?
Thanx.

you can not use any version of ruby you want,
but only one compiled by the developer or one compiled yourself, read Here for information.
after that you can use your ruby compiled for mswin-version,
and use the other existing libraries or add gems. etc..