Delphi 4 was mostly abandoned when Delphi 5 came out. You can still find Delphi 5 on Ebay. If you're not using any components, the code is compatible between versions.
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Henrik Erlandsson
On
If I recall correctly it should be included in at least some older Delphi versions. Get a second-hand Delphi 4, 5, 6, or 7 and do a Component/Install package..., navigate to Delphi's bin folder and install dclqrt*.bpl and it should work.
Delphi 4 was mostly abandoned when Delphi 5 came out. You can still find Delphi 5 on Ebay. If you're not using any components, the code is compatible between versions.