After installing the System 7.5.5 patch I noticed that my Express Modem software stopped working. Instead of turning on the modem, the control panel responded with a error message saying that there was not enough memory to start the Express Modem. After talking to some Apple Tech Support they noted that on many applications it was required that you added 23k of memory allocation to some applications in order for them to start under 7.5.5. Since it was not possible to add memory through the Get Info field the Apple Tech told me that need to Clean Install and get back to 7.5.3. I refused and took my own path to success. I simply hacked the control panel with ResEdit (Apple's unsupported resource editor) and changed the memory allocation from 530k to 700k. I also changed the controll panel's version number from 2.3.3 to 2.3.4. After having done this I created a free patch that will fix the Express Modem memory glitch. Only use this patch if you are having problems using the Apple Express Modem 2.3.3 software under System 7.5.5. If this patch works for you please pass a note to Apple and myself.
Note: I recommend that you make a copy of the Express Modem control panel before updating it.
