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Platform: Windows 95, 98, ME, NT 4.0, 2000 and XP.

System Requirements: Pentium 66 and higher, 32 MB of RAM, Internet Connection: 14.4, 28.8, 56K, ISDN, xDSL, Cable, AOL, Satellite, WebTV, T1, T3, OCx

The ModemSpeedBooster Software optimizes your internet settings based on your connection type and Windows Operating System. The product is designed to be easy to use for novice or basic computer users. The end result is a faster and more pleasurable internet surfing experience.

Friendly Easy to Use Interface: ModemSpeedBooster’s interface allows users to optimize their internet connection in just a few clicks. With the Express Speed Up Option, with just two simple steps internet users are on their way to an improved internet experience. Just choose Express Speed up and select your internet connection type and hit the finish button to optimize your internet settings.

Internet, Windows, and Modem Optimized Settings:

ModemSpeedBooster optimizes several internet and computer settings in order to accomplish the end result of faster and improved internet experiences. The following is a list of the major components of Windows Registry settings that ModemSpeedBooster optimizes:

Maximum Transmission Unit: Is the greatest amount of data that can be transferred in one physical frame on the network. If a packet that has a smaller MTU than the packet's frame length is sent, fragmentation will occur. For Ethernet, 1500 is the maximum MTU. The unofficial MTU for SLIP servers is 1006.

Maximum Segment Size: Defines the largest segment of TCP data that the Winsock is prepared to receive. When a connection is established, the two ends agree to use the smaller of each end's value. Windows calculates MSS automatically, based on MaxMTU.

DefaultRcvWindow: (TCP Receive Window, or simply RWIN) Determines how much data the receiving computer is prepared to get. A too large RWIN will result in greater loss of data if a packet is lost or damaged. A too small RWIN will be very slow, as each packet will have to be acknowledged before the next packet is sent. The RWIN is set to a multiple of the TCP MSS.

Tcp1323Opts: Large window support. Used when an application requests a Winsock socket to use buffer sizes greater than 64K. In previous implementations the TCP window size was limited to 64K, this limit is raised to 2**30 through the use of TCP large window support as implemented in Winsock 2.

SackOpts: Selective acknowledgements allow TCP to recover from IP packet loss without resending packets that were already received by the receiver. Employed with TCP large windows.

MaxDupAcks: Fast Retransmission and Fast Recovery of TCP connections that are encountering IP packet loss in the network. Allow a TCP sender to quickly infer a single packet loss by reception of duplicate acknowledgements for a previously sent and acknowledged TCP/IP packet. This mechanism is useful when the network is intermittently congested. The reception of 3 successive duplicate acknowledgements indicates to the TCP sender that it can resend the last unacknowledged TCP/IP packet (fast retransmit) and not go into TCP slow start due to a single packet loss (fast recovery).

DefaultTTL: Specifies the default Time To Live value set in the header of outgoing IP packets. The TTL determines the maximum amount of time an IP packet can live in the network without reaching its destination. It is effectively a limit on the number of routers an IP packet may pass through before being discarded.

PMTUDiscovery: Determines whether TCP uses a fixed, default maximum transmission unit (MTU) or attempts to find the actual MTU. The value of this entry is 0, therefore TCP uses an MTU of 576 bytes for all connections to computers outside of the local subnet.

PMTUBlackHoleDetect: When enabled, causes TCP to try to detect "Black Hole" routers while doing Path MTU Discovery. Enabling black hole detection increases the maximum number of retransmissions performed for a given segment.

Memory Optimization Tool: As a bonus tool ModemSpeedBooster also includes a Ram Optimization tool for smoother PC performance. By optimizing your computer’s RAM, you can prevent 90% of system crashes, improve boot time, and make all your applications run smoother.

ModemSpeedBooster’s Memory Optimizer proactively monitors your system's level of available RAM to provide the best possible environment for your PC to run in. Using its advanced RAMFlow system, it tracks your free memory and automatically manages your RAM to prevent crashes and boost PC performance. If you are a novice user, you can just install the Memory Optimizer and enjoy fast automatic memory management and cache tuning. If you are an advanced user, you can configure "Target" and "Trigger" levels of RAM to free up the desired amount of memory. Memory Optimizer also allows you to view all running applications, even hidden ones, and how much RAM they use. You can set the CPU priority for these.

Copyright 2005
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(c) 2005 Era 2000 Management Ltd.