WINSOFT software components and applications

How can I solve "Project Demo.exe raised exception class $C0000090 with message 'floating point invalid operation at 0x70934779'." error message?
Switch off floating point exceptions using this Delphi code:

Set8087CW(Get8087CW or $3F);
							

C++Builder code:

System::Set8087CW(System::Get8087CW() | 0x3F);
							

How can I solve "Class not registered." error message?

• Create manifest file applicationname.exe.manifest (change applicationname accordingly to the name of your application):

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
  <assemblyIdentity version="1.0.0.0" processorArchitecture="*" name="applicationname" type="*"/>

  <dependency>
    <dependentAssembly>
      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0"
        publicKeyToken="6595b64144ccf1df" language="*" processorArchitecture="*"/>
    </dependentAssembly>
  </dependency>

  <dependency>
    <dependentAssembly>
      <assemblyIdentity name="PdfSharp" version="1.51.5185.0" publicKeyToken="f94615aa0424f9eb" processorArchitecture="msil"/>
    </dependentAssembly>
  </dependency>
</assembly>
							

• Embed applicationname.exe.manifest file to your application: Select Delphi menu Project/Options.../Application. Change Manifest File combobox to Custom and select applicationname.exe.manifest file in Custom manifest edit box.
• Instead of embedding applicationname.exe.manifest file to your application, you can comment "{$R *.res}" line in applicationname.dpr file and use external applicationname.exe.manifest file:

// {$R *.res}
							

How can I retrieve PDF fields?

var Fields: _PdfAcroFieldCollection;

Fields := Document.AcroForm.Fields;
for I := 0 to Fields.Count - 1 do
  ShowMessage(IntToStr(I) + ': ' + Fields[I].Name);