MAC: Application Error Type 1 (160164)

WORKAROUND

• Load minimal extensions. Go to the Control Panel Extensions Manager. Uncheck any unnecessary extensions and restart. You should leave the OLE and Networking extensions running, and the Microsoft extensions. If this works, you most likely have an extensions conflict. Add the extensions back one by one, restarting the computer each time, and test until you find the conflict. If you do not have Extensions Manager, holding down the Shift key when you reboot will load without extensions.
• If you are running Microsoft Exchange on a PowerMac, try tuning the Memory Control Panel. It is recommended to change disk cache size to 1024K, turn on Modern Memory Manager, turn on Virtual Memory, and set the Virtual Memory to two times "built-in memory" plus 1MB.
  
  Example: If the PowerMac has 16MB of RAM, then set the Virtual Memory to 33MB.
• Change the "Minimum size" to run the application to 4500K. Highlight the Microsoft Exchange application file, and choose "Get Info" by holding down the Apple and I keys. Change the "Minimum size" to 4500K. You can also try maximizing the size to 4500K.
  
  NOTE: For PowerMacs, if Virtual Memory is turned off, memory requirements will increase. This will vary by PowerMac model and System version. For more information, choose "Get Info" on the Microsoft Exchange application.
• Drag the Fonts folder, located in the System folder, to the desktop. Restart the Macintosh to create a new Fonts folder. Things will not look very nice, but this step is for troubleshooting only. If everything works fine, reload the fonts from the system disk or CD, and/or from other manufacturer's installation files.
• Reinstall Microsoft Exchange. To perform a "clean" Microsoft Exchange installation, see the following article.

  158519 XCLN: Removing and Reinstalling the Macintosh Client

• Rebuild the desktop. Restart and hold down the Option and Apple keys. Hold down until prompted to rebuild the desktop, and then click OK.
• Zap the Parameter RAM (PRAM). Restart and hold down the Option+Apple+P+R keys. Hold down all four keys and the system will act like it is rebooting. Repeat this three times to make sure the PRAM has been cleared, and then let the machine boot normally.
• There may be System corruption. Try a new installation of the System software. Then install Microsoft Exchange (and only Microsoft Exchange) and test it. To install a new System folder alongside the current System folder, boot to the install disk or CD, and then hold down the Command+Shift+K keys when you run the installation.