The only safe offline installer for .NET on XP SP2 is from (via the Wayback Machine or MSDN archives). A trustworthy modern mirror is MajorGeeks or FileHippo (for legacy software), provided the hash matches Microsoft’s original SHA-1.
. This unlocks compatibility for .NET Framework 4.0, which many modern "legacy" apps require Microsoft Dev Blogs Language Packs The only safe offline installer for
: If you have trouble with .NET 3.5, it is highly recommended to upgrade to Windows XP Service Pack 3 Microsoft Learn This unlocks compatibility for
Because Windows XP is out of support, navigating the official Microsoft site on an old browser can be difficult. Download the using a modern computer. The only safe offline installer for
If you are re-installing Windows XP SP2 frequently (for retro gaming rigs or factory floor PCs), you can slipstream .NET 3.5 SP1 directly into your XP installation CD.
