okay, what i would suggest is
NOTE: This does not install app only copies cab files and registers them
1) first check the contents of the cab
2) next search a pc for those files on a pc that already has the app installed and make note of their locations
3) setup a job that copies the contents of the cab file to the location as noted in step 2 (I believe you will also need to register the files using a regsvr32 command)
4) setup your job in DS to run your script
Example of my crystal viewer script -
copy "
\\server\library\Crystal Viewer Fix\CRSmartTag.dll" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\crviewer.dep" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\crviewer.dll" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\crviewer.inf" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\crviewer.oca" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\cselexpt.ocx" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\reportparameterdialog.dll" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\sviewhlp.dll" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\swebrs.dll" c:\windows\system32
copy "
\\server\library\Crystal Viewer Fix\xqviewer.dll" c:\windows\system32
regsvr32 /s c:\windows\system32\CRSmartTag.dll
regsvr32 /s c:\windows\system32\crviewer.dep
regsvr32 /s c:\windows\system32\crviewer.dll
regsvr32 /s c:\windows\system32\crviewer.inf
regsvr32 /s c:\windows\system32\crviewer.oca
regsvr32 /s c:\windows\system32\cselexpt.ocx
regsvr32 /s c:\windows\system32\reportparameterdialog.dll
regsvr32 /s c:\windows\system32\sviewhlp.dll
regsvr32 /s c:\windows\system32\swebrs.dll
regsvr32 /s c:\windows\system32\xqviewer.dll
Hope this helps.