下载解压，点击鼠标右键，选择“编辑”调用记事本程序进行修改。将红色高亮部分修改成你自己的安装目录即可。修改完成后，双击导入注册表即可。（或者复制以下代码，粘贴到记事本，另存为XX.reg格式亦可。）
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Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Ubisoft\Far Cry 2]
"InstallDir"="E:\\Far Cry 2"
"Executable"="E:\\Far Cry 2\\bin\\FarCry2.exe"
"Language"="English"
"Version"="1.00.00"
"SecuROM"="1"
[HKEY_LOCAL_MACHINE\SOFTWARE\Ubisoft\Far Cry 2\1.00.00]
[HKEY_LOCAL_MACHINE\SOFTWARE\Ubisoft\Far Cry 2\GameUpdate]
"execPath"="E:\\Far Cry 2\\bin\\FarCry2.exe"
"info"="3dfe4d6acf3d0769911c1b4aba90aef2"
"installdir"="E:\\Far Cry 2"
"language"="us"
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——————————以下为卸载信息，导入上面键根仍无法升级的可以试试看————————
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F2835483-37F2-4123-B4FE-0E77D58447F2}]
"ModifyPath"="\"C:\\Program Files\\InstallShield Installation Information\\{F2835483-37F2-4123-B4FE-0E77D58447F2}\\setup.exe\" -runfromtemp -l0x0009"
"NoModify"=dword:00000001
"NoRepair"=dword:00000001
"UninstallString"="\"C:\\Program Files\\InstallShield Installation Information\\{F2835483-37F2-4123-B4FE-0E77D58447F2}\\setup.exe\" -runfromtemp -l0x0009 -removeonly"
"LogFile"="C:\\Program Files\\InstallShield Installation Information\\{F2835483-37F2-4123-B4FE-0E77D58447F2}\\setup.ilg"
"InstallLocation"="E:\\Far Cry 2"
"ProductGuid"="{F2835483-37F2-4123-B4FE-0E77D58447F2}"
"InstallSource"="R:\\"
"DisplayName"="Far Cry 2"
"Publisher"="Ubisoft"
"URLInfoAbout"="http://www.ubi.com"
"Readme"="E:\\Far Cry 2\\ReadMe.txt"
"RegOwner"="Windows 用户"
"DisplayIcon"="E:\\Far Cry 2\\bin\\FarCry2.exe"
"InstallDate"="20081023"
"Language"=dword:00000009
"DisplayVersion"="1.00.00"
"Version"=dword:01000000
"MajorVersion"=dword:00000001
"MinorVersion"=dword:00000000
"LogMode"=dword:00000001
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