Loading pfcls assembly for different versions of creo

[Joey]

Hello,

We're developing an application for creo that uses the pfcls vb api. We need support for multiple version of creo and what I've observed is that each major version of Creo (>X<.y.y.y X=major version) requires its own pfcls assembly (.dll). 

Is this true? 

Thanks 

[MurphyMin · Accepted solution]

Yes, you need to config the different dll to the different Creo version