Unfortunately, the 2story windows in the game only work on straight walls, and there are only two sizes - two tiles and four tiles.
So here are some AddOns that give you more variety.

Diagonal versions for Maxis 2story windows



Adds diagonal windows to the original Maxis 2story windows. The incoming light is adjusted.

Linking the new diagonal window to the straight one makes it necessary to override (not overwrite!) a resource of the original windows.
Therefore, the original windows have the asterisk for custom content in the catalog, when you put the files into your Downloads folder.
As this also enables the Delete icon for the windows, it is highly recommended to put the files into the Bins directory of your Programm Folder.
The diagonals will still work, but there will be no asterisk and no Delete icon.
(This is not necessary for the Clone Templates and the Simnuts Windows.)

Place in Program Files: Cut and paste the .package file(s) into your appropriate Install folder:

• Windows XP: C:\Program Files\EA GAMES\The Sims 2 (Your Latest EP)\TSData\Res\Catalog\Bins
• Windows Vista/7/8: C:\Program Files\EA GAMES\The Sims 2 (Your Latest EP)\TSData\Res\Catalog\Bins
• Windows Vista/7/8: C:\Program Files(x86)\EA GAMES\The Sims 2 (Your Latest EP)\TSData\Res\Catalog\Bins
• Origin: C:\Program Files (x86)\Origin Games\The Sims 2 Ultimate Collection\Fun with Pets\SP9\TSData\Res\Catalog\Bins
• Mac: APPLICATIONS FOLDER -> THE SIMS 2 -> TSDATA -> RES -> CATALOG

Please, be aware that the Zecutine Square Vista Window comes with H&M Accessoires. The Lightpane and the Octothorp Atrium window are base game windows.



Clone Templates for 2story windows



This set brings you additional sizes for 2story windows, all for straight and diagonal walls, as a base to clone your own windows.

The incoming light is adjusted for all sizes. All Windows visible in Neighborhood view.
Each Window comes with three Recolors.

Available sizes:

• One tile
• One tile in the middle of two tiles
• Two tiles
• Two tiles in the middle of three tiles
• Three tiles
• Four tiles

Diagonal versions for Simnuts 2story windows



As the Simnuts site is down, here are diagonal versions for the 8 Simnuts 2story windows (Louvre Collection, Golden Dreams, Italian Baroque, Versailles).
The original windows for straight walls by Simnuts are included. Additionally, you get 19 recolors.
Simnuts Profile here at MTS





Polygon Counts:
Maxis The Lightpane: 253
Maxis Octothorp Atrium:1977
Maxis Zeccutine Square Vista: 314
Clone Templates: 48
Simnuts Golden Dreams: 296
Simnuts Versailles I: 866
Simnuts Versailles II: 922
Simnuts Italian Barouque: 638
Simnuts Louvre I: 949
Simnuts Louvre II: 849
Simnuts Louvre III: 580
Simnuts Louvre IV: 480