VS2010 – cmd prompt .NET v3.5

I was trying to sign an assembly that I did have direct access to the code, in a Domain constrained SVN repo, and came across this:
http://buffered.io/2008/07/09/net-fu-signing-an-unsigned-assembly-without-delay-signing/
Well I did it all and found that VS2010 has ilasm 4.0, thus making an assembly that is .NET 4.0 targeted. Now I cant reference the assembly from a .NET 3.5 project.
I decided to create a shortcut that executed the older .NET tools i.e. “Visual Studio Command Prompt” 3.5
The two file, vcvarsall.bat and vcvars32.bat, control the way VS cmd prompt sets up the environment and should be copied as follows:
C:\Program Files\Microsoft Visual Studio 10.0\VC\bin\vcvars32.35.bat
C:\Program Files\Microsoft Visual Studio 10.0\VC\vcvarsall.35.bat

vcvars32.35.bat

…
@if not "%WindowsSdkDir%" == "" (
    @set "PATH=%WindowsSdkDir%bin;%WindowsSdkDir%bin\NETFX 4.0 Tools;%PATH%"
    @set "INCLUDE=%WindowsSdkDir%include;%INCLUDE%"
    @set "LIB=%WindowsSdkDir%lib;%LIB%"
)
…
@if exist "%VCINSTALLDIR%VCPackages" set PATH=%VCINSTALLDIR%VCPackages;%PATH% @set PATH=%FrameworkDir%%FrameworkVersion%;%PATH% @set PATH=%FrameworkDir%v2.0.50727;%PATH%
@set PATH=%FrameworkDir%%Framework35Version%;%PATH%
@set PATH=%VSINSTALLDIR%Common7\Tools;%PATH%
…

vcvars32.35.bat is modified to place the 3.5 tools first before 4.0.
Note: ilasm before v4.0 is v2.0.50727 so this is placed between the 3.5 and 4.0 versions
         i.e. 3.5 then 2.0 then 4.0

vcvarsall.35.bat

…
:x86
if not exist "%~dp0bin\vcvars32.35.bat" goto missing
call "%~dp0bin\vcvars32.35.bat" goto :eof
…
vcvarsall.35.bat is only modified to call vcvars32.35.bat NOT the original vcvars32.bat(4.0)

Now just copy the “Visual Studio Command Prompt (2010)” shortcut and replace “vcvarsall.bat”  parameter with “vcvarsall.35.bat”
now .NET 2.0 ilasm runs from this new shortcut.