Installing WebClient and WebClient applications in Microsoft Windows includes additional considerations due to the User Access Control (UAC) feature. With UAC enabled, an Administrator user runs applications as a Standard (unprivileged) user. To use their additional privileges, an Administrator must specifically select the Run As Administrator option from a context menu. By running the Web browser as a Standard user for the installation process, an Administrator could install personal instances of WebClient and WebClient applications.

Note: Progress recommends that Administrators do not create personal instances for themselves in this manner.

Another feature that impacts installations of applications that have not been adapted is "virtualization." This feature causes those applications to redirect writes for protected areas of the registry and file system to a private area for each user. This virtual access to those protected areas enables unadapted applications to still function, while maintaining Windows security control over protected ares.