Based on the console messages and some stuff you have selected in Blender, it looks like the smd exporter is having trouble writing out foreign letters -- probably for the texture file names in the smd. Perhaps you could change all the texture file names to use English letters until a fix can be made.

:)

RTM: https://developer.valvesoftware.com/wiki/Blender_Source_Tools_Help
First image on that page shows where to change between SMD and DMX.

:)

I have several versions of Blender installed on my Win7 machine. They work just fine.

:)