Hi Dave, thanks for your reply. yes you were correct, 2nd path was incorrect. I found that if you're getting an 0x1731 error it's likely it's not finding the file....after getting about 17 of them!
If anyone is searching the kyrtool, I had to load the certificates in one by one, it wouldn't accept them in one big text file...oh and I had to use the 32 bit kyr tool despite my server being 64 bit!
i.e.
C:\NOTES> kyrtool.exe import certs -i c:\temp\carootcert.crt -k c:\temp\mykeyring-sha2version.kyr
C:\NOTES> kyrtool.exe import roots -i c:\temp\caIntermediate1.crt -k c:\temp\mykeyring-sha2version.kyr
C:\NOTES> kyrtool.exe import roots -i c:\temp\caIntermediate2.crt -k c:\temp\mykeyring-sha2version.kyr
type of thing