更改windows注册表中的FunctionLibrary和ConfigApplication，将DLL和exe路径替换原来的，其他不要动。
或者
create second key in register.
HKEY_LOCAL_MACHINESOFTWAREPassThruSupport.04.04 Device1
HKEY_LOCAL_MACHINESOFTWAREPassThruSupport.04.04 Device2
Toolbox show you more devices and you select which one you want to use.
Modify Values according your original device. Leave Vendor and Name untouched. FunctionLibrary value is most important.
[HKEY_LOCAL_MACHINESOFTWAREPassThruSupport.04.04Drew Technologies Inc. - CarDAQ PLUS] "Vendor"="Drew Technologies Inc." "Name"="CarDAQ PLUS" "ConfigApplication"="CDPLSConfig.EXE" "CAN"=dword:00000001 "ISO15765"=dword:00000001 "J1850VPW"=dword:00000001 "J1850PWM"=dword:00000001 "FunctionLibrary"="C:\WINDOWS\SYSTEM32\CDPLS432.DLL"
[HKEY_LOCAL_MACHINESOFTWAREPassThruSupport.04.04 Drew Technologies Inc. - CarDAQ PLUS]
"Vendor"="Drew Technologies Inc."
"APIVersion"="04.04"
"DeviceId"=dword:00000259
"Name"="CarDAQ PLUS"
"FunctionLibrary"="C:\Arquivos de programas\GM MDI Software\Dynamic Link Libraries\BVTX4J32.dll"
"ConfigApplication"="C:\Arquivos de programas\GM MDI Software\J2534 Configuration\J2534ConfigApp.exe"
"CAN"=dword:00000001
"ISO14230"=dword:00000001
"ISO15765"=dword:00000001
"ISO9141"=dword:00000001
"J1850PWM"=dword:00000001
"J1850VPW"=dword:00000001
"SCI_A_ENGINE"=dword:00000001
"SCI_A_TRANS"=dword:00000001
"SCI_B_ENGINE"=dword:00000001
"SCI_B_TRANS"=dword:00000001
"SWCAN_ISO15765_PS"=dword:00000001
"SWCAN_PS"=dword"=dword:00000001
"GM_UART_PS"=dword:00000001
"ProtocolsSupported"="J1850VPW:1, J1850PWM:1, CAN:1, ISO9141:1, ISO14230:1, ISO15765:1, SCI_A_ENGINE:1, SCI_A_TRANS:1, SCI_B_ENGINE:1, SCI_B_TRANS:1, SWCAN_ISO15765_PS:1, SWCAN_PS:1, GM_UART_PS:1"
"CAN_PS"=dword:00000001
"FT_CAN_PS"=dword:00000001
"FT_ISO15765_PS"=dword:00000001
"ISO14230_PS"=dword:00000001
"ISO15765_PS"=dword:00000001
"ISO9141_PS"=dword:00000001
"PDUAPISupported"=dword:00000001
"SW_CAN_PS"=dword:00000001
"SW_ISO15765_PS"=dword:00000001
this is the registry for the all2flash
[HKEY_LOCAL_MACHINESOFTWAREPassThruSupport.04.04 Drew Technologies Inc. - CarDAQ PLUS]
"Vendor"="Drew Technologies Inc."
"APIVersion"="04.04"
"DeviceId"=dword:00000259
"Name"="CarDAQ PLUS"
"FunctionLibrary"="C:\\WINDOWS\\system32\\dg Flsh32.dll"
"ConfigApplication"="C:\\Program Files\\Flash2Console\\Flash2ToolConfig.exe"
"CAN"=dword:00000001
"ISO14230"=dword:00000001
"ISO15765"=dword:00000001
"ISO9141"=dword:00000001
"J1850PWM"=dword:00000001
"J1850VPW"=dword:00000001
"SCI_A_ENGINE"=dword:00000001
"SCI_A_TRANS"=dword:00000001
"SCI_B_ENGINE"=dword:00000001
"SCI_B_TRANS"=dword:00000001
"SWCAN_ISO15765_PS"=dword:00000001
"SWCAN_PS"=dword"=dword:00000001
"GM_UART_PS"=dword:00000001
"ProtocolsSupported"="J1850VPW:1, J1850PWM:1, CAN:1, ISO9141:1, ISO14230:1, ISO15765:1, SCI_A_ENGINE:1, SCI_A_TRANS:1, SCI_B_ENGINE:1, SCI_B_TRANS:1, SWCAN_ISO15765_PS:1, SWCAN_PS:1, GM_UART_PS:1"
"LoggingDirectory"="C:\\Program Files\\Flash2Console
原文链接：https://www.digital-kaos.co.uk/forums/showthread.php/223827-J2534-ToolBox-software/page4