Windows Type 1 fonts each consist of two files, a .pfb file containing the font itself and a .pfm file containing extended font metrics used for formatting text on the host computer. If you don't have both files for a particular font, the font is uninstallable and unusable. To install a Type 1 font on a Windows system, the .pfb and .pfm for the font should be in the same directory. Right click on the font and click on Install or Install as shortcut. Install copies the two files to the \Windows\Fonts directory and subsequently uses the font from that location. Install as shortcut uses the font from the location the files are currently located in with the caveat that you must keep those files in that location or else the fonts will no longer be accessible.
If you actually attempted to install Adobe Type Manager on 32-bit Windows 7 (or later) system, you may have destroyed your system's ability to properly install and use Type 1 fonts at all. If this has happened, you may need to reinstall Windows! (If I recall correctly, the installer for ATM refuses to run at all on Windows 64-bit versions, sparing you the destruction of your Type 1 rendering!)
- Dov