[Touch Diamond, MDA Compact IV Themes and Apps] hilaireg:
RESOLVED: An Unexpected error has occurred in manila.exe

Thanks NRGZ28!

In case others experience the above issue, verify your .NET Compact Framework registry (RGU) settings. In my case, the line endings were set to ,"CustomMarshalers.dll_v3_5_0_0_cneutral_1.dll" instead of ,"CustomMarshalers.dll".

Here's a copy of a working version:

REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETCompactFramework]
"3.5.7338.00"=dword:1

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETCompactFramework\Installer\Assemblies\Global]
"CustomMarshalers, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_CustomMarshalers_v3_5_0_0_cneutral_1.dll","CustomMarshalers.dll"
"Microsoft.ServiceModel.Channels.Mail, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.ServiceModel.Channels.Mail_v3_5_0_0_cneutral_1.dll","Microsoft.ServiceModel.Channels.Mail.dll"
"Microsoft.ServiceModel.Channels.Mail.WindowsMobile, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.ServiceModel.Channels.Mail.WindowsMobile_v3_5_0_0_cneutral_1.dll","Microsoft.ServiceModel.Channels.Mail.WindowsMobile.dll"
"Microsoft.VisualBasic, Version=8.1.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.VisualBasic_v8_1_0_0_cneutral_1.dll","Microsoft.VisualBasic.dll"
"Microsoft.WindowsCE.Forms, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.WindowsCE.Forms_v3_5_0_0_cneutral_1.dll","Microsoft.WindowsCE.Forms.dll"
"Microsoft.WindowsMobile.DirectX, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.WindowsMobile.DirectX_v3_5_0_0_cneutral_1.dll","Microsoft.WindowsMobile.DirectX.dll"
"mscorlib, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_mscorlib_v3_5_0_0_cneutral_1.dll","mscorlib.dll"
"System.Data, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Data_v3_5_0_0_cneutral_1.dll","System.Data.dll"
"System, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System_v3_5_0_0_cneutral_1.dll","System.dll"
"System.Drawing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Drawing_v3_5_0_0_cneutral_1.dll","System.Drawing.dll"
"System.Messaging, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Messaging_v3_5_0_0_cneutral_1.dll","System.Messaging.dll"
"System.Net.IrDA, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Net.IrDA_v3_5_0_0_cneutral_1.dll","System.Net.IrDA.dll"
"System.Web.Services, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Web.Services_v3_5_0_0_cneutral_1.dll","System.Web.Services.dll"
"System.Windows.Forms, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Windows.Forms_v3_5_0_0_cneutral_1.dll","System.Windows.Forms.dll"
"System.Xml, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Xml_v3_5_0_0_cneutral_1.dll","System.Xml.dll"
"System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Core_v3_5_0_0_cneutral_1.dll","System.Core.dll"
"System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Data.DataSetExtensions_v3_5_0_0_cneutral_1.dll","System.Data.DataSetExtensions.dll"
"System.Runtime.Serialization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Runtime.Serialization_v3_5_0_0_cneutral_1.dll","System.Runtime.Serialization.dll"
"System.ServiceModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.ServiceModel_v3_5_0_0_cneutral_1.dll","System.ServiceModel.dll"
"System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Xml.Linq_v3_5_0_0_cneutral_1.dll","System.Xml.Linq.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETCompactFramework\Installer\Assemblies\ROM]
"CustomMarshalers, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_CustomMarshalers_v3_5_0_0_cneutral_1.dll","CustomMarshalers.dll"
"Microsoft.ServiceModel.Channels.Mail, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.ServiceModel.Channels.Mail_v3_5_0_0_cneutral_1.dll","Microsoft.ServiceModel.Channels.Mail.dll"
"Microsoft.ServiceModel.Channels.Mail.WindowsMobile, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.ServiceModel.Channels.Mail.WindowsMobile_v3_5_0_0_cneutral_1.dll","Microsoft.ServiceModel.Channels.Mail.WindowsMobile.dll"
"Microsoft.VisualBasic, Version=8.1.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.VisualBasic_v8_1_0_0_cneutral_1.dll","Microsoft.VisualBasic.dll"
"Microsoft.WindowsCE.Forms, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.WindowsCE.Forms_v3_5_0_0_cneutral_1.dll","Microsoft.WindowsCE.Forms.dll"
"Microsoft.WindowsMobile.DirectX, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_Microsoft.WindowsMobile.DirectX_v3_5_0_0_cneutral_1.dll","Microsoft.WindowsMobile.DirectX.dll"
"mscorlib, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_mscorlib_v3_5_0_0_cneutral_1.dll","mscorlib.dll"
"System.Data, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Data_v3_5_0_0_cneutral_1.dll","System.Data.dll"
"System, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System_v3_5_0_0_cneutral_1.dll","System.dll"
"System.Drawing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Drawing_v3_5_0_0_cneutral_1.dll","System.Drawing.dll"
"System.Messaging, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Messaging_v3_5_0_0_cneutral_1.dll","System.Messaging.dll"
"System.Net.IrDA, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Net.IrDA_v3_5_0_0_cneutral_1.dll","System.Net.IrDA.dll"
"System.Web.Services, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Web.Services_v3_5_0_0_cneutral_1.dll","System.Web.Services.dll"
"System.Windows.Forms, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Windows.Forms_v3_5_0_0_cneutral_1.dll","System.Windows.Forms.dll"
"System.Xml, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Xml_v3_5_0_0_cneutral_1.dll","System.Xml.dll"
"System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Core_v3_5_0_0_cneutral_1.dll","System.Core.dll"
"System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Data.DataSetExtensions_v3_5_0_0_cneutral_1.dll","System.Data.DataSetExtensions.dll"
"System.Runtime.Serialization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Runtime.Serialization_v3_5_0_0_cneutral_1.dll","System.Runtime.Serialization.dll"
"System.ServiceModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.ServiceModel_v3_5_0_0_cneutral_1.dll","System.ServiceModel.dll"
"System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969DB8053D3322AC"=multi_sz:"\\windows\\GAC_System.Xml.Linq_v3_5_0_0_cneutral_1.dll","System.Xml.Linq.dll"