The RichEdit control was first shipped in Win95. Exchange 4.0 email client app (shipped in 1996) had a Win16-bit version which included RichEdit. see https://

The RichEdit control was first shipped in Win95. Exchange 4.0 email client app (shipped in 1996) had a Win16-bit version which included RichEdit. see https://learn.microsoft.com/en-us/archive/blogs/murrays/richedit-versions https://learn.microsoft.com/en-us/archive/blogs/murrays/rich...