Optimize Dialup Modem and Serial port FIFO buffer in Windows 9x

To configure your modem:

Open Control Panel
Double click the System-applet
Select the Device Manager-fan
Expand the Modems-node and select properties for your modem
Select the Connection-fan and press the Port Settings-button, there enable FIFO and turn the sliders all the way up
Select the Advanced-fan and make sure that Hardware flowcontrol, Error Correction and Compression is enabled
Select the Modem-fan and change the BPS:
- 57600 if it is a 28.8/33.6K modem
- 115200 if it is a 56K modem

To configure the port the modem is attached to (If external modem):

Open Control Panel
Double click the System-applet
Select the Device Manager-fan
Select the Ports-node and select properties for the serial port the modem is attached to
Select the Port Settings-fan and change the Bits Per Second(BPS) to 115200 or higher, and make sure Flowcontrol is set to Hardware
On the Port Settings-fan press the Advanced-button and activate the FIFO buffer and turn the sliders all the way up.