Answer: I have not heard of these products, but it's very possible that they are no longer approved. Many older pest control chemicals are being prohibited as new, less toxic, more effective ones become available.
It does sound like pansy wilt, caused by several different fungi. Since these fungi can remain in the soil, it's best not to replant pansies in that area for a few years. You might consider planting them in containers, in purchased potting soil, instead. Or you can try amending the soil heavily with compost -- compost contains many microorganisms that can minimize problems with disease. (Occasionally drenching the soil with "compost tea" may also help.)
I love pansies, and I know how disappointed you must be. I hope this helps!
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