[Windows] Fix charset problem

[Mino5531]

This fixes #574 a problem on Windows regarding the chosen charset in the Runner.rc file. Originally, the application would try to read the 040904e4 block in the Runner.rc file and would leave the values for company and product_name empty if the read failed. After this fix the application will try to read the 040904e4 block and the 040904b0 block if the first read failed. Additionally, the values for company and product_name will be set to a default value if both read operations failed. This fix also addresses some problems regarding path sanitization.