winreg.DeleteKey(key, sub_key) Deletes the specified key. key is an already open key

msilib.OpenDatabase(path, persist) Return a new database object by calling MsiOpenDatabase. path is the file name of

msvcrt.kbhit() Return true if a keypress is waiting to be read.

mapping(event, attribute) Make an entry into the EventMapping table for this control.

msilib.CreateRecord(count) Return a new record object by calling MSICreateRecord(). count is the number

class msilib.Directory(database, cab, basedir, physical, logical, default[, componentflags]) Create a new directory in the Directory

winreg.SetValue(key, sub_key, type, value) Associates a value with a specified key. key

Record.SetStream(field, value) Set field to the contents of the file named value, through MsiRecordSetStream()

msilib.gen_uuid() Return a new UUID, in the format that MSI typically requires (i.e. in curly braces, and with all hexdigits

Record.GetFieldCount() Return the number of fields of the record, through MsiRecordGetFieldCount().