Can't Instal winetricks dotnet20 on 64Bit System

[Xplorer4x4]

I am running Precise and need to install wintracks dotnet2.0 but run in to a problem about running a 64 bit system.

From konsole:

winetricks dotnet20
Executing w_do_call dotnet11
Executing load_dotnet11
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This package does not work on a 64-bit installation
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xplorer4x4@xplorer4x4-MS-7673:~/iso2god_v1.3.6-360h$ winetricks dotnet20
Executing w_do_call dotnet20
Executing load_dotnet20
Executing w_do_call fontfix
Executing load_fontfix
Setting Windows version to win2k
Executing winetricks_early_wine regedit C:\windows\Temp\_dotnet20\set-winver.reg
Executing mkdir -p /home/xplorer4x4/.cache/winetricks/dotnet20
Executing unzip -o -q -d /home/xplorer4x4/.wine/dosdevices/c:/windows/syswow64 l_intl.zip
Executing mkdir -p /home/xplorer4x4/.cache/winetricks/dotnet20
Executing wine dotnetfx.exe
fixme:advapiecryptFileA "C:\\users\\xplorer4x4\\Temp\\IXP000.TMP\\" 00000000
p11-kit: couldn't load module: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: cannot open shared object file: No such file or directory
p11-kit: couldn't load module: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: cannot open shared object file: No such file or directory
fixme:advapi:LsaOpenPolicy ((null),0x33f31c,0x00000001,0x33f344) stub
fixme:advapi:LsaClose (0xcafe) stub
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Note: command 'wine dotnetfx.exe' returned status 26. Aborting.
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It launches the installer for dotnet2.0 but when I click next for the first time I get to the next screen and it says it failed to install since htis is a 64 bit system. How can I fix this?

[HalationEffect]

This might be worth a try.

First, issue this command:

export WINEARCH=win32

Then try the installation again.

[Xplorer4x4]

Now I get this error when I try winetricks dotnet20,
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wine cmd.exe /c echo '%ProgramFiles%' returned empty string
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if I do export WINEARCH=win64 I can run winetricks dotnet20 but just go back to the same error as in the OP.

Update I started a clean wineprefix using export WINEPREFIX=$HOME/.new_wine and tried again, but I still have the same error.