Thank you John.
The library will not compile under Windows 98.
With Windows XP Pro, I successfully recompiled the library then compiled str_test\main.c.
When run, the main.exe output was
str_sprintf Error - Insufficient Buffer size!
str_sprintf 1234567890 7654 -2147483526
str_sprintfx 1234567890 6543 15
str_wsprintf PellesC! 76543 0
str_wlen PellesC! 76543 14
str_svprintf PellesC! 123456
str_svprintfx Pel 3
Robert Wishlaw