DicomObjects 64bit Registration

As VS20xx is itself a 32 bit application, even though it is compiling a 64 bit application, which uses a 64 bit OCX, it cannot ITSELF access the 64 bit OCX for intellisense, #import etc.  The standard requirements for using 64 bit COM component in VS20xx is that a 32 bit version with the same interfaces must be registered on the development machine (not of course needed for subsequent execution).

32 bit Registration

C:\Windows\SysWOW64\regsvr32.exe  <PathToOCX>\DicomObjects.6.32.ocx

64 bit Registration

C:\Windows\System32\regsvr32.exe   <PathToOCX>\DicomObjects.6.64.ocx

 

For deployment and distribution of your 64bit application, only DicomObjects 64 bit is needed.

 

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