The dds_converter_v21.exe file you have requested: Tools and Utilities / Misc / DDS Converter (2.1) - 1.16mb is not available. Perhaps try browsing all files for the game C&C: Generals and upload any files you want to share or are missing. This is the only information we could locate:
Here's a handy program to allow you to easily convert to DDS (and other formats) easily. The program supports DDS, TGA, JPG, BMP, PNG and PSD image formats.