Missing Predefined Variable

[farrukh]

Hi,

I'm building a project in IS 2011 and getting this error:

ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\isregsvr.dll not found. Cannot stream the file into the Binary table
ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\SFHelper.dll not found. Cannot stream the file into the Binary table
ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\isxmlcfg.dll not found. Cannot stream the file into the Binary table
ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\SetAllUsers.dll not found. Cannot stream the file into the Binary table
ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\IISHelper.dll not found. Cannot stream the file into the Binary table

In the Path Variable panel, the variable  ISRedistPlatformDependentFolder is missing:

While it is supposed to be like: (Image taken from another machine):

So, How to recover it as a Predefined variable or else how to get rid of errors like:

ISDEV : error -1024: File <ISRedistPlatformDependentFolder>\isregsvr.dll not found. Cannot stream the file into the Binary table

Thanks