I have been asked by a client to work on an application custom developed for them by a developer who is no longer available to them.

They provided a copy of the source code to me, but as soon as I tried to open the main project file, VFP complained bitterly about not finding a series of class libraries (vcx files) the all began with vpm.

Am I correct in assuming that this app was developed with Visual Pro Matrix?

Does this also mean that I will not be able to modify this app without a copy of VPM?

TIA

Potter Orr