Symptoms
64 bit versions of the following dlls's
SourceCode.HostClientAPI.dll
SourceCode.WorkFlow.Client.dll
SourceCode.WorkflowManagement.dll
Diagnoses
Querying where the DLL locations are stored for 64 bit and 32 bit environments
Resolution
SourceCode.Workflow.Client.dll
64-bit version in the 'C:Program Files(x86)K2 blackpearlHost ServerBin' directory
SourceCode.Workflow.Management.dll
This assembly is pure MSIL architecture, so it works with both 32-bit and 64-bit applications and can be found in the 'C:Program Files(x86)K2 blackpearlBin' directory
32bit Versions Program Files (x86)K2 blackpearlin
64bit Versions Program Files (x86)K2 blackpearlHost Serverin