PCFILT is now a public domain program free for use by anyone who needs to design passive filters.
NOTE: Extract the zip file into the folder C:\PCFILT
UPDATE: To update from earlier versions copy these three files from the zip file to the c:\pcfilt folder:
PCFILT does not utilize any of the confusing facilities of Windows, such as user folders or the registry. If you choose to remove the program later simply delete the folder C:\PCFILT and all sub-folders.
PCFILT, Version 2.xx for 32 or 64 bit bit Windows
PCFILT changes list (text file) * Upgrades *
The PCFILT users guide, in Acrobat (pdf) format, may also be downloaded but it is included with the program download above.
The downloadable users guide is in multiple Adobe Acrobat "pdf" format files "ZIPed" together. You must first un-zip them into a new directory (folder).