>When I attempt to use some of my ActiveX controls, I get the following error: "OLE error code 0x80040112: Appropriate License for this class not found." What does this mean? Are there additional things to pay for when using these controls, or have I misplaced some files? If so, what files? Thanks for any help.

Erik,
If you just removed an older copy of VFP, or uninstalled an exe, the registry key for VFP ocx may have been removed. See MS KB article Q161897

HTH