You don't say what your operating system is or what version of Winfax you are running, but I found this on a search at Symantec.
Error: "FAXMNG32.EXE Application Error..." or "WFXCTL32.EXE Application Error..." After Installing WinFax PRO
Situation:
You are installing WinFax PRO, but upon finishing the installation you receive the following error message: "FAXMNG32.EXE Application Error..." or "WFXCTL32.EXE Application Error...". If you try to start WinFax PRO or the Controller, you receive the same error and must restart your computer.
Solution:
Checking the WinFax Printer
Check that the WinFax printer is installed.
1. Click Start, point to Settings and choose Printers. The Printers window appears.
2. If you see a WinFax icon, then the driver is installed.
Check the integrity of the WinFax printer as follows:
1. Right click the WinFax printer and choose Properties. The WinFax Properties dialog box appears.
2. If the WinFax Properties dialog box contains four or more tabs, then the driver is intact. If you see fewer tabs, then the driver is corrupt and must be reinstalled.
Reinstalling the WinFax Printer
To reinstall the WinFax printer in Windows NT, you must perform a custom reinstallation of the WinFax PRO program files.
1. Close WinFax PRO and the Controller.
2. Insert your WinFax PRO CD into your CD-ROM drive.
3. If the WinFax PRO Setup program does not start automatically, run SETUP.EXE from the \WINFAX80 folder on the CD.
4. Choose Custom Installation and click Next
5. Highlight WinFax from the installation list and click Details.
6. Uncheck all of the options except for WinFax Program Files.
7. Click OK
8. Click Next and follow the on-screen instructions to finish installing the program files.
NOTE:
If you have installed a WinFax PRO update by running LiveUpdate, you must reinstall the update after installing the WinFax PRO program files. The update file is located in your \WINFAX folder and is named PATCH80x.EXE, where x is the minor version number of the update. For example, the WinFax PRO 8.03 update file is named PATCH803.EXE. Double click the update file to reinstall the update.
ggebhart@clover.net
I hope I never get too old or arrogant to learn something new!