IISROOTFOLDER syntaxis error on installation

[xsintill]

I am using \dir with some components in my installation. problem is that i get an error during installation. This error is talking about a syntaxis error on all the components where i use .When i change it to \dir it doesn't give me any problem anymore.
I checked via script what IISROOTFOLDER looked like and it was just holding this value:"\" .
In this installation when IIS is not installed these features should not be installed i hide them using the following code

FeatureSetData (MEDIA, "Edu Web LMS", FEATURE_FIELD_VISIBLE, FALSE, "Hidden feature");

Problem is that i still get the syntaxis error even though the features don't get installed.

Using the following code i don't get the syntaxis error

if IISROOTFOLDER="\\" then
    	TextSubSetValue("", "", FALSE );
    endif;

somehow this feels like i am just fixing the symptom but not the cause. anybody know how to fix this correctly?

Oops forgetting to add i am using an installscript project

[joshstechnij]

Are you also calling FeatureSelectItem to deselect this feature? If not, hiding it will only prevent the feature from being displayed on a feature dialog; if the feature was never deselected, the engine will still try to install the feature.

[xsintill]

Thanks for the heads up but yes i was using the following code

FeatureSetData(MEDIA, sFeatureName, FEATURE_FIELD_SELECTED, aLicensed, "Checked vanuit licentie");

I have talked with my colleague here who says the syntaxis error probably be gone when i configure the IIS part of the installation(i have not yet added any data here).