Zip Self extracting iconfile fails

Attempt to use custom iconfile for self extracting zip file fails in c#. See below for LastErrorText contents. I have tried many different .ico files with the same result. The same .ico that fails with my c# ZIP code works using ChilkatZipSE however ChilkatZipSE bombs with large files. I am following the procedures listed at link text but still cannot get the custom icon to work. Do you see anything in the error output that might indicate the problem?

LastErrorText

ChilkatLog:
  WriteExe:
    DllDate: Aug  3 2011
    UnlockPrefix: MyUnlockCode
    Username: MyUserName
    Architecture: Little Endian; 64-bit
    Language: .NET 4.0 / x64
    SfxRuntimeSize: 475136
    tempFile1: .\ckExe_ZFGL.dat
    rva is NULL
    Failed to build resource tree..
    Failed to load EXE image.
    Proceeding without custom icon...

<SfxConfig>
    <AutoTemp>1</AutoTemp>
    <DeleteAfterSetup>0</DeleteAfterSetup>
    <ShowFin>0</ShowFin>
    <ShowMain>0</ShowMain>
    <ShowProgress>0</ShowProgress>
    <WaitForSetup>1</WaitForSetup>
    <Encryption>0</Encryption>
    <KeyLength>128</KeyLength>
    <MainTitle>Archive Utility</MainTitle>
    <DefaultDir />
    <Cleanup>1</Cleanup>
    <ProgressTitle>Extracting</ProgressTitle>
    <ProgressCaption>Extracting setup files . . .</ProgressCaption>
    <SetupExe>setup.exe</SetupExe>
    <IconFile>c:\myicon.ico</IconFile>
    <VersionCreatedBy>14.4.0</VersionCreatedBy>
</SfxConfig>