Longshine LCS-8051A - Manual (Page 13)

ISDN PCI card
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6. For Windows 95 or OSR2, if the Microsoft ISDN
Accelerator Pack 1.1 or Dial-Up Networking 1.3 has
been installed before, Windows will detect some files
with newer version. Press “Yes” to keep the newer files.
7. For Windows 95 or OSR2, if the Microsoft ISDN
Accelerator Pack 1.1 or Dial-Up Networking 1.3 is not
installed before, you should see the following screen.