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================================================== PL2303 Driver Setup Installer, Prolific Edition Setup Installer Revision Note History ================================================== System Requirement: . USB 1.1/2.0/3.0 Host Controller . Device using PL2303HXA/XA/HXD/EA/RA/SA/TA/TB version chips . Supports the following Windows OS Family (32 and 64 bit): - Windows 2000 SP4 - Windows XP SP2 and SP3 - Windows Server 2003 - Windows Vista - Windows Server 2008 - Windows 7 - Windows Server 2008R2 - Windows 8 - Windows Server 2012 - Windows 8.1 - Windows Server 2012R2 NOTE: - Windows 8/8.1/Server2012/Server2012R2 are NOT supported in PL2303HXA/XA EOL chip versions (discontinued). - Download latest PL2303 CheckChipVersion tool program to check chip version in Windows 7. - Windows 98 and ME driver support are discontinued. - Windows 2000 and XP support are also discontinued. Supported device ID and product strings: . VID_067B&PID_2303 for "Prolific USB-to-Serial Comm Port" (PL2303 series) . VID_067B&PID_2304 for "Prolific USB-to-Serial Comm Port" (PL2303TB chip) Driver Versions: ------------------- - WDM WHQL Driver: v2.1.51.238 (10/22/2013) - for Windows 2000/XP/Server2003 - WDF WHQL Driver: v3.4.67.325 (08/15/2014) - for Windows Vista/7/8/8.1/Server2008/2012 Release Notes: --------------- PL2303 Driver Installer v1.10.0 Installer & Build date: 1.10.0 (2014-09-25) GUID:ECC3713C-08A4-40E3-95F1-7D0704F1CE5E ===================================================================== Windows Vista/7/Server2008/Server2008R2/8 Driver Changes v3.4.67.325 ===================================================================== Driver Change from v3.4.62.293 (Driver Installer v1.9.0): ------------------------------------------------------------------ . Fixed Win7/8 to WinXP data transfer customer issue (38400bps). Adjust timeout constant. . Fixed problem with SecureCRT program when setting DTR/DSR flow control. . Fixed ClearCommError issue. . Added 5787 and 300kbps baudrate support. . Supports "IRP_MJ_CLEANUP". Fixed customer application cannot re-open COM port after closing port. . Improve device enumeration when PC reboots and device is plugged in. Driver Change from v3.4.48.272 (Driver Installer v1.8.0 & 1.8.19): ------------------------------------------------------------------ . Driver will delay 1.5ms when AP execute GET_MODEMSTATUS. . Fixed teraterm timeout/slow response issue. . Fixed GPIO 2 & 3 function for HXD chip. . Add 3250000bps baud support. . GPIO 2,3 set as default input pin. . Add auxiliary GPIO 4~7 driver support for HXD chip. . Fixed modem issue (Disable SerialWdmFileRead). . Add 256000 bps baud support for PL2303TA/TB. . Fixed customer VB AP issue. . Improve Serial Mouse enumeration. Driver Change from v3.4.36.247 (Driver Installer v1.7.0): ---------------------------------------------------------- . Fixed 110 bps on PL2303RA/SA/EA/TA/TB. . Modify CheckChipVersion API (do not lock VID/PID). . Fixed HXD chip is detected as HXC chip when BCD is written as 0300 instead of 0400. . Added 80bps baud support. . Fixed GPS device will be detected as MS Serial Ballpoint device. . Fixed driver conflict with different VID/PID device. (STATUS_OBJECT_NAME_COLLISION) . Fixed Teraterm loopback timeout issue. Driver Change from v3.4.31.231: ------------------------------ . Fixed Putty/HTerm BSOD issue in Win7 64-bit. (for HXD chip only) . Fixed HyperTerminal timeout issue when transferring large file. (for HXD chip only) . Fixed Windows HCK logo test for Windows 8, 7, Vista WHQL driver. Driver Change from v3.4.25.218: ------------------------------ . Added driver support for new chip versions (PL2303EA, RA, SA). . Supports new CheckChipVersion v1.0.0.2 and above program for checking all Prolific chip version. . Fixed COM Port won't disappear when unplug PL2303 during data transfer (Write Timeout issue). . Fixed Putty program BSOD issue on continuous transfer at 115200bps. . Fixed 12Mbps baudrate support for PL2303TB chip version. . Does NOT support Windows 8 for EOL chip versions (PL2303H, PL2303HXA, PL2303XA). . For Windows 8: use PL2303HXD, PL2303TA, PL2303EA, PL2303SA, PL2303RA, PL2303TB. Driver Change from v3.3.17.203: ------------------------------ . Added driver support for Prolific next-gen USB-to-Serial chips (Codename TA/TB). - old driver will not work on baudrates higher than 115200bps. . No driver functional difference for current H/HX/X chip versions. Driver Change from v3.3.11.152: ------------------------------ . Use different service name in INF file to avoid driver conflict with XP INF driver. - change line in INF file to {Serial.SVCDESC = "Prolific Serial port WDFdriver"} . Added USB Selective Suspend power saving feature requested by Notebook PC vendors. - Chip will go to sleep mode when idle for 10 seconds and COM port not open. - Chip will NOT go to sleep mode when COM port is OPEN. - requires to write Remote Wakeup in external EEPROM. . Modify "SerialUndoExternalNaming" routine. - Fix COM port is not removed in registry when device is unplug and program still open. - update registry HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIAL COMM when unplug and replug. . Added support for TransmitCommChar() function. . Added SpinLock function to fix customer GPS application. ============================================================ Windows 2000/XP/Server2003 Driver v2.1.51.238 (10/22/2013) ============================================================ Beginning September 2014, Windows XP driver will not be updated anymore. Driver Change from v2.1.44.226 (Driver Installer v1.8.0 & 1.8.19): ------------------------------------------------------------------ . Driver will delay 1.5ms when AP execute GET_MODEMSTATUS. . Fixed GPIO 2 & 3 function for HXD chip. . Add 3250000bps baud support. . GPIO 2,3 set as default input pin. . Add auxiliary GPIO 4~7 driver support for HXD chip. . Add 256000 bps baud support for PL2303TA/TB. . Improve Serial Mouse enumeration. . Fixed WHQL test using HCK 2.0. Driver Change from v2.1.35.211 (Driver Installer v1.7.0): --------------------------------------------------------- . Fixed 110 bps on PL2303RA/SA/EA/TA/TB. . Modify CheckChipVersion API (do not lock VID/PID). . Fixed HXD chip is detected as HXC chip when BCD is written as 0300 instead of 0400. . Added 80bps baud support. . Fixed GPS device will be detected as MS Serial Ballpoint device. . Fixed Disable-Enable device issue in Windows 2000 Device Manager. Driver Change from v2.1.30.193: ------------------------------ . Fixed write timeout intermittent issue (COM port won't disappear) during USB surprise removal. . Fixed new Windows HCK logo test for XP WHQL driver. Driver Change from v2.1.27.185: ------------------------------ . Added driver support for new chip versions (PL2303EA, RA, SA). . Supports new CheckChipVersion v1.0.0.2 and above program for checking all Prolific chip version. . Fixed COM Port won't disappear when unplug PL2303 during data transfer (Write Timeout issue). . Fixed 12Mbps baudrate support for PL2303TB chip version. Driver Change from v2.0.16.166: ------------------------------ . Added driver support for Prolific next-gen USB-to-Serial chips (Codename TA/TB). - old driver will not work on baudrates higher than 115200bps. . No driver functional difference for current H/HX/X chip versions. Driver Change from v2.0.13.130: ------------------------------ . Use different service name in INF file to avoid driver conflict with Vista/7 INF driver. - change line in INF file to {Serial.SVCDESC = "Prolific Serial port WDMdriver"}