The phrase appears to be a combination of terms referencing amateur radio software and a viral internet meme. MultiPSK Software
Some legitimate amateur radio repositories (such as DXzone, HamFiles, or IW5EDI’s site) may archive old versions. Search for multipsk_4.67_setup.zip . Multipsk User Cod Download 67
If you are stuck trying to download or run version 4.67, here are the top three problems and fixes: The phrase appears to be a combination of