>You need to register the control on the client. Most install programs (including VFP) will take care of this. But I have found that a few controls require you to use Regedit to register them properly.

Can you give an example here? While it's not uncommon for controls to require the creation of keys and key values that aren't knowable through self-registration (it may not be possible to know where to look for data simply from the name or location of the control; VFP6's runtime, for example, needs some keys to be created that can't be derived from where the runtime executable lives), there's normally no need to fire up REGEDIT to manually create keys - you can usually create a .REG or .INS file, or programmatically create required registry entries.