[fpc-pascal] Where to find WinProcs or equivalent unit

[Cleverson]

Hi,

Using FreePascal, I'm trying to compile an open source project written
originally in Delphi 6.

Some units require Winprocs, for accessing
functions such as GetPrivateProfileString. I didn't find it amongst
FreePascal's installed units. I searched it in Google and got a WinProcs
unit from the following adress, but FPC gives lots of errors while
trying to compile it:
http://inf.unisul.br/~osmarjr/download/delphi/units/winprocs.zip

Where can I get either WinProcs or something equivalent for FreePascal ?

Many thanks
Cleverson