1. 备份visualSVNbin目录
2. 打开VS命令提示工具，反编译VisualSVN.Core.L.dll
运行命令
ildasam "VisualSVN安装目录\bin\VisualSVN.Core.L.dll" /out="VisualSVN安装目录\bin\VisualSVN.Core.L.il"
例如：
ildasm "C:\Program Files (x86)\VisualSVN\bin\VisualSVN.Core.L.dll" /out="C:\Program Files (x86)\VisualSVN\bin\VisualSVN.Core.L.il"
3. 用文本编辑工具打开得到的 VisualSVN.Core.L.il 文件，在其中搜索 “KeyToLicenseUnsafe”，找到KeyToLicenseUnsafe方法，大概在3188行附近。替换如下
.method public hidebysig static class VisualSVN.Core.Licensing.License KeyToLicenseUnsafe(class VisualSVN.Core.IDecoder decoder, string key) cil managed {
// 代码大小 69 (0x45)
.maxstack 2
.locals init (class VisualSVN.Core.Licensing.License V_0, class VisualSVN.Core.Licensing.License V_1, class VisualSVN.Core.Licensing.License V_2)
IL_0000: nop
IL_0001: newobj instance void VisualSVN.Core.Licensing.License::.ctor()
IL_0006: stloc.1
IL_0007: ldloc.1
IL_0008: ldsfld valuetype [mscorlib]System.DateTime [mscorlib]System.DateTime::MinValue
IL_000d: stfld valuetype [mscorlib]System.DateTime VisualSVN.Core.Licensing.License::StartTime
IL_0012: ldloc.1
IL_0013: ldc.i4.1
IL_0014: stfld valuetype VisualSVN.Core.Licensing.LicenseBinding VisualSVN.Core.Licensing.License::Binding
IL_0019: ldloc.1
IL_001a: ldc.i4 0x7ffffffe
IL_001f: stfld int32 VisualSVN.Core.Licensing.License::Capacity
IL_0024: ldloc.1
IL_0025: ldsfld valuetype [mscorlib]System.DateTime [mscorlib]System.DateTime::MaxValue
IL_002a: stfld valuetype [mscorlib]System.DateTime VisualSVN.Core.Licensing.License::EndTime
IL_002f: ldloc.1
IL_0030: ldc.i4.2
IL_0031: stfld valuetype VisualSVN.Core.Licensing.LicenseType VisualSVN.Core.Licensing.License::Type
IL_0036: ldloc.1
IL_0037: ldstr "100"
IL_003c: stfld string VisualSVN.Core.Licensing.License::PurchaseId
IL_0041: ldloc.1
IL_0042: call string [mscorlib]System.Environment::get_UserName()
IL_0047: stfld string VisualSVN.Core.Licensing.License::LicensedTo
IL_004c: ldloc.1
IL_004d: stloc.0
IL_004e: ldloc.0
IL_004f: ldloc.0
IL_0050: ldfld valuetype [mscorlib]System.DateTime VisualSVN.Core.Licensing.License::StartTime
IL_0055: stfld valuetype [mscorlib]System.DateTime VisualSVN.Core.Licensing.License::PurchaseDate
IL_005a: ldloc.0
IL_005b: stloc.2
IL_005c: br.s
IL_005e
IL_005e:ldloc.2
IL_005f: ret
} // end of method LicenseConverter::KeyToLicenseUnsafe
4. 重新编译成dll文件，删除原VisualSVN.Core.L.dll 文件，VS命令提示工具中执行以下命令进行编译：
ilasm "VisualSVN安装目录\bin\VisualSVN.Core.L.il" /output="VisualSVN安装目录\bin\VisualSVN.Core.L.dll" /dll
例如：
ilasm "C:\Program Files (x86)\VisualSVN\bin\VisualSVN.Core.L.il" /output="C:\Program Files (x86)\VisualSVN\bin\VisualSVN.Core.L.dll" /dll
效果如下：
最终可以在vs中使用了
It‘s all