This error happens when running TinyTERM 4.10 on Windows NT 4.0 or 2000. It’s not actually trying to update the registry, but it does check to see if it can.

You can resolve the error by downloading and applying this patch. It is a replacement for the existing tt.exe program.

To use the patch, save it into the C:\Program Files\Century\TinyTERM directory. In that same directory, locate the file tt.exe and rename it as a backup. Then rename this patch as “tt.exe”. The next time you start TinyTERM, it will be in effect.

WARNING: This patch only applies to TinyTERM version 4.10. If used with earlier versions of TinyTERM, or on operating systems newer than Windows NT 4.0 or 2000, TinyTERM licensing problems and system instability could result.

The patch is not needed for Windows 95, 98 or Me. The patch is incorporated into later versions of TinyTERM already.

This error means TinyTERM version 3.3 can’t locate its internal procedure for dialing a modem. It most often happens due to an inability to recognize long directory names, especially with spaces. So when it’s installed as a subdirectory of C:\Program Files, this can happen.

The error can also occur when the file WTERMUS.CMD, which contains the w_dialer_dial procedure, has gotten damaged or partially corrupted. In either case, the fix is the same.

Uninstall TinyTERM using the manual uninstall instructions. Reboot the PC, then reinstall TinyTERM. When it asks for a directory path, specify a DOS-style path, rather than a long one; e.g., C:\Century.

If you still get the error after installing, edit the WTERMUS.CMD file in the same manner described under the Incompatible TAPI Version item.

Some TinyTERM 3.3 and 4.0 installs had the potential to delete all printers installed in Windows NT. To restore printing functionality in this case, uninstall TinyTERM. Then apply this patch. The patch documentation can be downloaded from this link.

Once the patch is installed, you can reinstall TinyTERM. Do not install the NFS component, as that’s what causes the problem.

You may see this error running TinyTERM 3.3 on Windows NT. If you search your C: drive, you should find the file CTL3DXX.DLL. Rename that file to CTL3D32.DLL.

If you do not have that file, you can also download it from this link. In either case, the file should be in the C:\Winnt\System32 folder.

Support for TinyTERM versions prior to 4.0 (October 1998 release) ended in July 1999. This includes all versions of TERM For Windows. Support for TinyTERM versions prior to 4.30 ended in March 2007. The only support remaining for those products is here on our website So if you have questions about our older versions, watch this forum for answers.

This also effectively means the end of support for Windows 95 as a platform for TinyTERM. Version 4.30 requires Windows 98 or higher, and versions from 4.40 on require at least Windows 98se.

TERM for DOS and TERM for UNIX/Linux are not affected by this. We will continue to support those products in the appropriate environments.