Digital Signatures
By default Advanced Installer has its own DigiSign tool enabled to digitally sign the packages it creates. SignTool and SignCode are external tools that can be used as an alternative.
Patch
MsiMsp.exe is a tool used by Advanced Installer to build Windows Installer Patches.
These files can be downloaded for free from the Microsoft Web Site
and they are part of Windows SDK.
Java Packing
The JDK (Java Development Kit) is required by Advanced Installer to verify the signature of the JAR files that are packed using Pack200.
.NET
RegAsm.exe is a tool used by Advanced Installer to register a .NET Assembly for COM Interoperability. This tool is part of the .NET Framework.
When necessary, Advanced Installer will attempt to find the executables itself.
In case of failure, you can specify the exact locations here.
Virtualization
VMWare ThinApp install location.