Msappavail

Msappavail checks which Microsoft Office programs are installed.

The sequence

$call msappavail -option

can be used in GAMS to checks for the presence of the Microsoft Office software package option on the machine.

Allowable values of option:

-? List all known Office applications and their status 

-Access 

-Excel 

-Explorer 

-FrontPage 

-Outlook 

-PowerPoint 

-Project 

-Word

Upon return if called with an option other than -? then the GAMS recognized errorlevel is

 set to 1 if the program looked for was not found.

 set to 0 if found

Whether or not the item was found of not using

$if errorlevel 1 $goto noExcel

which is true if the item is not found. The file CTA.gms from the model library uses this feature.