msi: Fix the compressed files logic.

If the compressed file attribute is not set, use the Word Count
property to determine if files are compressed.

dlls/msi/action.c

@@ -1326,7 +1326,23 @@ static UINT load_file(MSIRECORD *row, LPVOID param)
 
     file->state = msifs_invalid;
 
+    /* if the compressed bits are not set in the file attributes,
+     * then read the information from the package word count property
+     */
     if (file->Attributes & msidbFileAttributesCompressed)
+    {
+        file->IsCompressed = TRUE;
+    }
+    else if (file->Attributes & msidbFileAttributesNoncompressed)
+    {
+        file->IsCompressed = FALSE;
+    }
+    else
+    {
+        file->IsCompressed = package->WordCount & MSIWORDCOUNT_COMPRESSED;
+    }
+
+    if (file->IsCompressed)
     {
         file->Component->ForceLocalState = TRUE;
         file->Component->Action = INSTALLSTATE_LOCAL;

dlls/msi/action.h

@@ -120,6 +120,7 @@ typedef struct tagMSIFILE
     msi_file_state state;
     LPWSTR  SourcePath;
     LPWSTR  TargetPath;
+    BOOL IsCompressed;
 } MSIFILE;
 
 typedef struct tagMSITEMPFILE

dlls/msi/files.c

@@ -330,7 +330,7 @@ static BOOL extract_cabinet_file(MSIPACKAGE* package, LPCWSTR source,
 static VOID set_file_source(MSIPACKAGE* package, MSIFILE* file, MSICOMPONENT*
         comp, LPCWSTR path)
 {
-    if (!(file->Attributes & msidbFileAttributesCompressed))
+    if (!file->IsCompressed)
     {
         LPWSTR p, path;
         p = resolve_folder(package, comp->Directory, TRUE, FALSE, NULL);
@@ -419,7 +419,7 @@ static UINT ready_media_for_file( MSIPACKAGE *package, struct media_info *mi,
     msi_free(mi->last_path);
     mi->last_path = NULL;
 
-    if (!(file->Attributes & msidbFileAttributesCompressed))
+    if (!file->IsCompressed)
     {
         mi->last_path = resolve_folder(package, comp->Directory, TRUE, FALSE, NULL);
         set_file_source(package,file,comp,mi->last_path);
@@ -605,7 +605,7 @@ UINT ACTION_InstallFiles(MSIPACKAGE *package)
             continue;
 
         /* compressed files are extracted in ready_media_for_file */
-        if (file->Attributes & msidbFileAttributesCompressed)
+        if (file->IsCompressed)
         {
             if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW(file->TargetPath))
                 ERR("compressed file wasn't extracted (%s)\n",

dlls/msi/msipriv.h

@@ -39,6 +39,12 @@
 #define MSITYPE_NULLABLE 0x1000
 #define MSITYPE_KEY      0x2000
 
+/* Word Count masks */
+#define MSIWORDCOUNT_SHORTFILENAMES     0x0001
+#define MSIWORDCOUNT_COMPRESSED         0x0002
+#define MSIWORDCOUNT_ADMINISTRATIVE     0x0004
+#define MSIWORDCOUNT_PRIVILEGES         0x0008
+
 #define MSITYPE_IS_BINARY(type) (((type) & ~MSITYPE_NULLABLE) == (MSITYPE_STRING|MSITYPE_VALID))
 
 struct tagMSITABLE;
@@ -223,6 +229,8 @@ typedef struct tagMSIPACKAGE
     UINT CurrentInstallState;
     msi_dialog *dialog;
     LPWSTR next_dialog;
+
+    UINT WordCount;
     
     struct list subscriptions;
 } MSIPACKAGE;

dlls/msi/package.c

@@ -40,6 +40,7 @@
 #include "shlobj.h"
 #include "wine/unicode.h"
 #include "objbase.h"
+#include "msidefs.h"
 
 #include "msipriv.h"
 #include "action.h"
@@ -376,6 +377,34 @@ static VOID set_installer_properties(MSIPACKAGE *package)
     ReleaseDC(0, dc);
 }
 
+static UINT msi_get_word_count( MSIPACKAGE *package )
+{
+    UINT rc;
+    INT word_count;
+    MSIHANDLE suminfo;
+    MSIHANDLE hdb = alloc_msihandle( &package->db->hdr );
+
+    rc = MsiGetSummaryInformationW( hdb, NULL, 0, &suminfo );
+    MsiCloseHandle(hdb);
+    if (rc != ERROR_SUCCESS)
+    {
+        ERR("Unable to open Summary Information\n");
+        return 0;
+    }
+
+    rc = MsiSummaryInfoGetPropertyW( suminfo, PID_WORDCOUNT, NULL,
+                                     &word_count, NULL, NULL, NULL );
+    if (rc != ERROR_SUCCESS)
+    {
+        ERR("Unable to query word count\n");
+        MsiCloseHandle(suminfo);
+        return 0;
+    }
+
+    MsiCloseHandle(suminfo);
+    return word_count;
+}
+
 MSIPACKAGE *MSI_CreatePackage( MSIDATABASE *db )
 {
     static const WCHAR szLevel[] = { 'U','I','L','e','v','e','l',0 };
@@ -411,6 +440,8 @@ MSIPACKAGE *MSI_CreatePackage( MSIDATABASE *db )
         list_init( &package->progids );
         list_init( &package->RunningActions );
 
+        package->WordCount = msi_get_word_count( package );
+
         /* OK, here is where we do a slew of things to the database to 
          * prep for all that is to come as a package */