I'm sure this is a FAQ.

I added a hard drive to my system and the CD-ROM moved (D: to E:)
Today I went to add some components to my system and now I'm getting:

Setup could not open the file: D:\SETUP.EXE

I've spent all day hacking the registry, SETUP.INF, SETUP.STF and
anything else I could think of. The only thing that even almost
worked was in the SETUP.STF file when I changed:

Source Directory D:\

to

Source Directory F:\

It at least got me through the installation. When the install ended
it says:

SETUP ERROR 544

Setup was unable to open the data file:
D:\~MSSETUP.T\~MSSTFQF.T\vfp5.stf; run
Setup again from where you originally ran it.

I give up. It wins. Short of reinstalling FoxPro entirely, does
anyone know how to fix this problem?

...kt