The DllNamesMap parameter is used when a virtual application does not work correctly due to a mismatch between a short filename and the corresponding long filename. You can use this parameter to map a file's short name to the file's long name.

In the absence of a native application, the operating system is unable to convert the file's short filename to its long (or full) filename. The long name is the name of the file when stored in the package. Each mapping in the parameter is separated with a colon and different mappings are separated with a semi-colon.

You can add this parameter to the General Purpose Parameters section of Package.ini.

For example, a virtual application stores and uses the following short filenames : shortn~1.dll and shortn~2.dll. The long filenames of these files are fullname1.dll and fullname2.dll respectively. To map the short filenames to their corresponding long filenames, the DllNamesMap parameter must be used as follows: DllNamesMap=shortn~1.dll:fullname1.dll; shortn~2.dll:fullname2.dll