JSI Tip 0974. Control Panel / Modems does not start or display Modem Properties?

The subject behavior can be the result of the not having the PnP ISA Enabler started or having some files in %SystemRoot%\System32 missing or corrupt.

To fix the problem, verify that the PnP ISA Enabler is configured:

1. Navigate to <CD-ROM:>\DRVLIB\PNPISA\<Your Platform>\PNPISA.INF.

2. Right click and choose Install.

3. Restart your computer.

If any of the following files are missing from %SystemRoot%\System32, reapply your latest Service Pack:

      Shell32.dll
      Rpcrt4.dll
      Tapi32.dll
      Setupapi.dll
      Msvcrt.dll
      Lz32.dll
      Comdlg32.dll
      Version.dll
      Cfgmgr32.dll
      Mpr.dll
      Rpcltc1.dll

NOTE: PNPISA is a "use at your own risk" tool, since Plug and Play devices are not supported in Windows NT 4.0.