Hi Jerom,
Although it does become a pain to maintain two separate applications of which target two different cpu platform, it is also the choice with the least amount of headaches. There have been other software developers that have wondered why you need two DLLs for one ActiveX component, and I found an answer on Stack Overflow that sums it up. You can click here for the answer.
In the end, you will always be better off deploying two applications, one which targets 32 bit, and the other 64 bit. Also, Xceed does not support any bugs or strange behavior if you are trying to use the 32 bit DLL in a 64 bit environment, or having them run in parallel. We will not be able to make any changes to the component to make this feature work.
Imported from legacy forums. Posted by Marc [Xceed] (had 1026 views)