It doesn’t seem to matter since WW seems to be working correctly, but during the installation I got the message that scrrun.dll registration failed with error code 0x80004005. I tried to register it manually and that also failed.
WW doesn’t use/need scrrun.dll to run. It must use the MS Script Runtime dll during the install phase.
Good. Thank you. That answered my question, also. Version 5.6.21 seems to be running perfectly.