Errors building samples in MSVC++5

I'm a beginner and that is why I can't solve this myself, not knowing code well enough to spot the errors.
The errors occur when I try to build certain samples which are included in the MSVC++5 Win32 samples folder.
(I've applied Visual Studio Service Pack-2, didn't help)

The errors allways occur when I try to build the samples/projects with *.c files in them, the samples that have *.cpp files don't cause these errors:
   "error LNK2001: unresolved external symbol"
   "fatal error LNK1120: unresolved externals"

I've done a search in InfoViewer on the error and it said it's probabily due to "external" or "inline" functions, but again I'm just learning and can't (at this point) spot the problem in the source code.
Could someone point out the code I need to adjust to allow these to build properly? or perhaps advise on how to do the build so they will not error.
I've tried building the projects two ways:
1.) simply clicking on the *.c file and answering "yes" to the prompt for a workspace.
2.) creating a project (Win32) and importing the files.
neither method builds the examples.


The examples (all have) the error:

Trying to build the "Wizard" example;
Compiling...
WIZARD.C
Linking...
WIZARD.OBJ : error LNK2001: unresolved external symbol __imp__PropertySheetA@4
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/WIZARD.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.
WIZARD.exe - 3 error(s), 0 warning(s)

Trying to build the "generic" example;
GENERIC.exe - 5 error(s), 0 warning(s)

Trying to build the "Shell extension" example;
SHELLEXT.exe - 17 error(s), 0 warning(s)

Trying to build the "registry API" example;
MONKEY.exe - 2 error(s), 1 warning(s)

Trying to build the "Shell extension" example;
CDTEST.exe - 10 error(s), 0 warning(s)

Trying to build the "common dialogs" example;
COMDLG32.exe - 2 error(s), 0 warning(s)