# Changelog

## 1.7.0.22 [Work-In-Progress]
- Simplified source code:
  * expressions, slider names, etc. are now loaded directly in the PARM resource).
	* Load-methods and Save-methods don't return boolean and a reason string. Instead they return 0 (success) or a error message ID otherwise.
- The slider positions will be preserved when a filter is made

## 1.7.0.21 [23-Nov-2023]
- Read FFX file: Fixed buffer overflow when some strings (Title,Category,Author,Copyright,SliderNames) are too long
- Read GUF file: Only the last part of the Category will be imported
- Implemented reading of FFL files (actually, they will be only extracted, so they can be read afterwards)

## 1.7.0.20 [21-Nov-2023]
- Implemented "GIMP UserFilter" (GUF) file format.

## 1.7.0.19 [01-Jul-2022]
- Fixed bug in Watcom (32 bit) build that prevented creation of protected filters.

## 1.7.0.18 [15-May-2022]
- 32bit/Windows filter: Fixed issue with resource strings (English and German language was broken) introduced in version 1.7.0.17.

## 1.7.0.17 [14-May-2022]
- Fixed theoretical bug that can crash a Photoshop application if PLUGIN.DLL exists but is not loaded.
- Added translation for German systems (*)
- `map(i,n)` now works like in Filter Factory and not like GIMP User Filter v0.8.
- `val(i,a,b)` now returns the same value like Filter Factory for illegal values of `i`.
- Windows: Standalone filters containing ampersand characters ("&") in Name or Category now have the correct "Visual Themes", as the Manifest XML is not broken anymore.
- Windows: Handling of ampersand characters ("&") in Title, Category, Author, Copyright, and Controller/Map labels fixed.
- Introduced obfuscation version 7, which is more secure.
- Support for "Filter layers" added (not fully tested; PiPL attribute `'8BIM':'flly'`) (*)
- FilterFoundry can now work correctly with Duotone and Lab color spaces (PiPL property `'8BIM':'mode'` was wrong)
- "Indexed Color" mode removed, since it seems to have never worked.
- Internal change: PiPL resource now contains `'8BIM':'cmpt'` (Component) (*)
- Internal change: PiPL resource now contains `'ViaT':'ObId'` (Object Identifier) (*)
- Internal change: PiPL resource now contains `'8BIM':'prty'` (Priority)

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.16 [22-Mar-2022]
- Fixed bug that caused PLUGIN.DLL sliders not working if the filter was called multiple times. You can hotfix existing standalone plugins by replacing "UnregisterSlider" with "UnRegisterSlider" using a hex-editor. Affected are plugins built using 1.7.0.13/14/15.

## 1.7.0.15 [06-Mar-2022]
- Now compatible with Windows 3.11 using Win32s and Photoshop 3.0. Some functionalities might be unstable, though.

## 1.7.0.14 [24-Dec-2021]
- 32 bit: Increased performance (OpenWatcom build).
- 64 bit: Made a Unicode variant of Filter Foundry which is able to read and write files with Unicode directory names. Note that the Plugin and Parameter structure of Photoshop/FilterFactory is not Unicode ready, so please use ANSI or better ASCII for them.
- Windows NT 3.x: Preview is now showing instantly when the dialog is opened.
- Control text edit: The "up" and "down" keys (arrow keys on the keyboard) can now be used to increase and decrease the value by 1. (*)
- Control text edit: Internal overflow check fixed. Inputs like "500" will now be evaluated as "255" (max value) rather than "244" (modulo 256).

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.13 [04-Dec-2021]
- Internal change: PARM resource inside memory works now with C-Strings instead of Pascal-Strings.
- The released 32-bit version is now optimized by the compiler.
- Updated documentation.
- Plugin is now compatible with Windows NT 3.1 and 3.5x. (Just a few tiny incompatibilities: Preview image cannot be panned, Help button does not work, and preview image is not drawn directly after dialog opening).
- Windows NT 3.1, 3.5x, 95, 98, and Me can now also build 64-bit modules.
- Bugfix: When you saved a AFS or PFF file, you received a wrong information about PluginCommander TXT files.
- Bugfix: Trying to open a protected filter now correctly displays the message "Filter is protected" again, instead of "No filter detected".
- If you click "Make" after the make dialog has been opened once, your previous input will be shown again.
- Zoom in, zoom out and zoom level label are now buttons (in the default OS style) rather than images and text. (*)
- By default, Photoshop's sliders (PLUGIN.DLL) will be used. Only if PLUGIN.DLL is missing, the Microsoft Trackbar Controls are used.
- Fixed severe crash when sliders were created and moved, then the filter was applied and re-opened!

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.12 [06-Nov-2021]
- Added possibility to load and save PluginCommander TXT files.
- Added possibility to load TXT files created by FFdecomp.

## 1.7.0.11 [01-Nov-2021]
- Tab-Order has been changed (*)
- Fixed incompatibility with older versions of Wine (Windows emulator for Linux systems)
- In the Make dialog, if you clicked "OK" and then cancelled the save dialog, you didn't get back to the Make-dialog. Fixed.
- "Filters Unlimited" filters (FFX files) can now be loaded. However, only the basic Filter Factory commands are supported.
- You can now also save to the "Premiere Filter Factory" (.pff) file format.
- Internal change: The resource fork type 'TpLT' is now 'tpLT'.
- Internal change: Obfuscated data is stored in resource fork 'obFS' instead of 'DATA'. For Windows "OBFS" instead of RCDATA.
- Bugfix: When you tried to load a protected obfuscated filter and then tried to make a new filter, the filter was damaged. Fixed.

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.10 [19-Sep-2021]
- Introduced obfuscation version 6, which is more secure and 4 times faster!
- Warning signs and zoom in/out pictures now have "tool tips" so that you know what will happen if you click them (*)

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.9 [12-Sep-2021]
- `dmin` has been changed from 0 to -512, `dmax` has been changed from 1024 to 512, and `D` stayed 1024 (`D:=dmax-dmin`), in order to fit the actual ranges of `d`, as implemented in Filter Factory.
- `I` is now defined as `imax-imin`. Same with `U` and `V`. Therefore, the variables are now `I=255`, `U=110`, and `V=156`.
- Windows: Reading of Mac standalone plugins (rsrc files): The initial values of the sliders are now correctly read, as well as the line-breaks of the copyright-field.
- Standalone dialog: Can now have multi-line copyright text (*)
- Increased speed of the creation of the preview picture if state-changing functions (put,rnd,rst) are used (reverted change in 1.7b1). The preview might not be accurate at some rare cases, but at least it is now very fast again...
- Built filters can now be read by Plugin Manager 2.1 by I.C.NET (Michael Johannhanwahr). Note that not all filters might work, because PluginManager has its own implementation of the FilterFactory functions and might not implemented some previously undocumented functions. It will not implement the newly added pow() function of FilterFactory 3.1.0 / Filter Foundry 1.7 either.

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.8 [03-Sep-2021]
- Created 8BF standalone filters now contain the correct PE checksum (Note: The original compiled binaries contain "0", compiled with OpenWatcom and Visual C++)
- Introduced obfuscation version 5 (it is like version 4, but contains an integrity check); also fixed some smaller issues with obfuscation loading.
- Following functions have been changed to a 100% replica of the Filter Factory implementation:
	* `rnd(a,b)`
	* `cos(x)`
	* `sin(x)`
	* `tan(x)`
	* `r2x(d,m)`
	* `r2y(d,m)`
	* `rad(d,m,z)`
	* `c2d(x,y)`
	* `c2m(x,y)`
	* `sqr(x)`
	* `d`
	* `m`
	* `M`
- The window is now opened on the correct screen (the one where Photoshop is opened). Additionally, it is avoided that the window is spread over multiple screens. (*)
- Added new function `pow(b,e)` which are already part of the inofficial Filter Factory 3.1.0 patch by Daniel Marschall.
- The previously undocumented variables I, U, V as well as imin, umin, vmin have been changed to represent the actual results of the i,u,v variables:
	imin = 0 (stayed the same)
	umin = -55 (was 0)
	vmin = -78 (was 0)
	I, imax = 255 (stayed the same)
	U, umax = 55 (was 255)
	V, vmax = 78 (was 255)
- Added a documentation based on the Filter Factory documentation.
- Added a help button which opens the documentation on the web. (*)
- For 32/64-bit cross-build, there is now no requirement that both plugin files must be installed anymore.
- Windows 95/98/Me: If UNICOWS.DLL is missing (required for building a standalone filter), it will be automatically installed for you (version 1.1.3790.0, signed 07 Dec 2004)
- Fixed error where the 8BF manifest file contained garbage data at the end, resulting in the standalone filter having no "XP design"

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.7 [08-Aug-2021]
- Standalone filters are now created in 32 and 64 bit. To make this work, you need to install FilterFoundry.8bf and FilterFoundry64.8bf in your plug-in directory. (*)
- Security improvement: Filters which have been built using obfuscation "V3" or "V4" will now always be treated as protected plugin, even if the obfuscated code has been manipulated.
- Introduced obfuscation "V4" (more secure) which stores the seed in the binary code of the 8BF file (*)
- Obfuscated "V1" and obfuscated "V2" filters can now be loaded again (as long as they aren't protected)
- Windows message box dialogs are now properly "modal" (they have the correct parent window handle), and therefore, they blink when you click at the parent window.
- The TPLT (template data) and build dialog resources are now deleted from standalone filters to save space. (*)
- "PE header build timestamp" is now set for built standalone filters

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.6 [01-Aug-2021]
- .pff files (Premiere Filter Factory) are now correctly loaded
- Obfuscated standalone filters can now recall the previous settings on GIMP/Irfanview (was disabled in 1.7.0.5, because the temporaray .afs file leaked the obfuscated code).

## 1.7.0.5 [30-Jul-2021]
- Changed obfuscation code ("Version 3", now more secure). It is compiler-dependent, therefore the resource cannot be exchanged between plugins
- When an obfuscated filter is loaded, it will be checked if the obfuscation worked / is compatible
- The feature "Obfuscate" and "Protected" are now merged together.
	Reason: Obfuscate without protect makes no sense (since everybody can read/load it using FilterFoundry) and
	protect without obfuscate makes no sense (because you can read the formula using a resource editor and even remove the protect flag with a hex editor)
- Standalone plugins: Version info wasn't written correctly when plugin was obfuscated. Fixed.

## 1.7.0.4 [27-Jul-2021]
- Fixed problem where 32bit Windows plugin tries to load 64bit standalone plugin
- Bugfix: Windows Open/Save dialogs: At the title, the first character was missing. Fixed.
- Internal change: "Manifest" resource gets individualized in standalone plugins
- Internal change: PiPL/Manifest-template is now stored in 'TpLT' instead of 'DATA'/RCDATA. (But obfuscated data stays at 'DATA'/RCDATA)
- Bugfix: If you called a standalone filter two times, then the main dialog opened (bug introduced in 1.7.0.3)
- Ifanview/GIMP can now also work with standalone filters
- If the user tries to open a protected 8BF file, the error message will now state that it can't be opened because the filter is protected

## 1.7.0.3 [23-Jul-2021]
- Support BigDocument structure (.psb) (*)

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7.0.2 [19-Jul-2021]
- Project was forked by Daniel Marschall and released on GitHub. For now, only the Windows version is supported.
- Bugfix: If a plugin is called from a recorded Action, a dialog was shown at the first start, even if dialogs were disabled.
- Bugfix: Variable `d` now works like FilterFactory/FilterFoundy1.6 again. (Bug introduced in FilterFoundry 1.7b1 due to the change of the `c2d()` function)
  NOTE: FilterFactory uses `c2d(x,y) := atan2(y,x)`, but `d := atan2(-y,-x)`. Due to compatibility reasons, we implement it the same way!
- Bugfix: Standalone filters did not show the correct "About" dialog
- FilterFoundry is now AppleScript aware (*)
- Fixed various smaller things and improved the source code building process
- Map labels are centered between two sliders, like in Filter Factory (*)
- AFS files: Improved interoperability (read/write) with Filter Factory in regards "line break" characters
- "About dialog" shows if the plugin is a 32 bit or 64 bit plugin
- "Original filename" version info attribute now correctly shows "FilterFoundry64.8bf" for 64 bit build
- Left "beta" state

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.7b1 [20-Sep-2019]
- First release by Daniel Marschall
- Fixed crash at filter startup when the computer had too much RAM.
- Fixed crash where built obfuscated filters could not be opened.
- Changed format of obfuscated filters ("Version 2"). It is now compiler-independant.
- Added function `rst(i)` which is an undocumented function in Filter Factory for setting a random seed.
- Size PARM_SIZE in PARM resource corrected.
- Added Visual Studio project file, and extended NMake script to support flex and bison compilation.
- Dialogs (build dialog, open and save dialogs) are now modal, i.e. the main window is locked when they are open. (*)
- The preview dialog has now a hand cursor. (Open hand on hover. Grabbing hand on panning) (*)
- Dialog boxes now have a "X" button to close the window.
- Preview: Checkerboard does only move when the panning succeeded (the picture didn't go off border)
- Bugfix: In the preview window, you could (virtually) pan the image beyond the canvas, so that you needed to pan multiple times in the opposite direction to get to the position "0" again.
- The "version information" of standalone filters is now individualized by the creator's input
- Win64 support (*)
- All undocumented symbol aliases of FilterFactory are now supported (`rmin`, `rmax`, `cnv0`, etc.)
- Bugfix: In some cases, the preview image had a small stripe of random pixels at the right or bottom.
- For disabled sliders, the corresponding label is now also grayed out (*)
- Bugfix: In standalone filters, the unused `ctl()` labels were not hidden. They are now invisible as intended.
- Bugfix: At standalone filters, the `map` text was not displayed; instead, the two `ctl` texts were displayed.
- AFS Files are now compatible with FilterFactory. (FilterFactory does ONLY understand `"\r"` (0D) linebreaks, while FilterFoundry always saved `"\n"` (0A) linebreaks, while being able to read `"\r"`, `"\n"` or `"\r\n"`. Now, `"\r"` is used for saving.) (*)
- The "caution" sign that indicates an error in the expression now has a hand cursor that shows up when you hover over the icon, to indicate that the user will receive more information if they click on the icon (*)
- The "caution" sign now has a sharper design (it was a bit pixelated).
- The expression input fields now have a vertical scrollbar (*)
- YUV formulas are now more accurate. They are slightly different, but not much.
	* The i range is now [0..255] instead of [0..254].
	   (This means that pure white has now i=255 instead of i=254)
	* The u range stays at [-55..55].
	* The v range is now [-78..78] instead of [-77..77].
- Bugfix: If `ctl()` or `map()` was called with a non-constant argument, the controls in the build dialogs were not correctly enabled/disabled, and built standalone filters did not get the correct "needs UI" flag. Fixed.
- In the build dialog, if `map()` was used, the corresponding `ctl()`-labels now can't be changed anymore, since the resulting standalone filter won't show them anyway.
- Warning dialogs (`alertuser` and `simplealert` function) are now modal. (*)
- Bugfix: Trigonometry functions sin and cos had wrong output ranges for Windows (it was -1024..1024 instead of the documented output range -512..512). Fixed.
- Bugfix: Trigonometry function tan now behaves like in Filter Factory
- Bugfix: Function `c2d()` now behaves like in Filter Factory. Implementation changed from `atan2(-y,-x)` to atan2(y,x).
- Bugfix: The cell values used by the functions `get()` and `put()` were not (re-)initialized before the filter started running. This caused that expressions like `put(get(0)+1,0)` produced different results at each run.
- Adobe Premiere FilterFactory/TransitionFactory filters (`.pff` Settings and `.prm` 16/32 bit Windows Standalone Filters) can now be imported (*)
- Old FilterFactory standalone filters for macOS can now be imported (*)
- In Windows, the "load" algorithm will now first check if a file is an AFS/PFF file, and then if it is a standalone filter. Due to this, files can now be opened, even if they have the wrong file extension.
- Bugfix: When state-changing functions (rst, rnd or put) are used within the formula, every pixel in the picture will now be evaluated during preview, even if the user has zoomed in.
- Fixed "off by one" bug where you could pan a fit-zoomed picture by 1 pixel in the preview
- The preview area now has a dark off-canvas area and for Windows, a "sunken" border
- Windows: Visual Styles are now supported and always be applied
- Bugfix: If you click the zoom level-caption for a tiny picture, the zoom ("fit zoom") won't zoom in to >100% anymore.
- Building standalone filters is now possible with Windows 9x. (Requires compilation using an old Windows SDK, or compilation using OpenWatcom)
- Fixed TLV lengths in the PIPL structure (includes now paddings). This might solve incompatibilities with non-Photoshop hosts (i.e. GIMP).
- GIMP (using PSPI to load 8BF plugins) and IrfanView is now compatible.
- `c2m()` and `sqr()` are now approximately 3 times faster
- Build of plugins with empty titles or categories will now be prevented since plugins with empty categories or titles won't be shown in the filter menu.
- Fixed Actions (recording/playback). Several things like the AETE resource were broken. The classID had to be changed to `'Fltr'` so that the parameters are shown in the Photoshop Action tab. (*)
- Scripting/Actions: For standalone filters, the name of the sliders are now written in the "Actions" tab. The function `fixaete()` was replaced with `aete_generate()`. (*)
- `MaxSpace64` will now be used, if supported by the host

(*) This bug/solution was tested on Windows but needs to be verified and/or implemented on Mac.

## 1.6b1 [07-Jun-2009]
- Clean up for 64-bit Windows build

## 1.5b6 [26-Aug-2007]
- Associativity of `?`: operator (Harald Heim)

## 1.5b4 [02-Aug-2007]
- Fix debug message spotted by Daniel Denk

## 1.5b3 [13-Jul-2007]
- Add instrumentation to try to find CS3/Intel Mac "Make standalone" problem.

## 1.5b1,2 [19-Feb-2007]
- Support remaining 8-bit image modes (wishlist proposal)

## 1.4b7 [18-Feb-2007]
- Swap +/- zoom controls to match Photoshop builtins

## 1.4b8,9,10
- Simple parameter obfuscation ("Version 1") in standalone plugins (wishlist #7)

## 1.4b6 [16-Feb-2007]
- Lowercase default file extensions (wishlist #1)

## 1.4b5 [02-Feb-2007]
- Minor changes to image sampling logic (`ff_src()`, `rawsrc()`)

## 1.4b4 [01-Feb-2007]
- `cnv()` no longer requests the entire filtered image in one piece; can now work in chunks to improve the handling of edge pixels when filtering selection

## 1.4b3 [01-Feb-2007]
- In `cnv()`, repeat pixels at the edge of the image, instead of using zero (reported by Daniel Denk)

## 1.4b2 [31-Jan-2007]
- Fix selection bug reported by Daniel Denk

## 1.4b1 [04-Jan-2007]
- Universal Binary on OS X (PPC+Intel)

## 1.3b2 [01-Sep-2006]
- Fix standalone UI bugs (thanks Craig Bickford)

## 1.3b1 [05-Jun-2006]
- Fix `x`, `y`, `X`, `Y`, `M` variables to use selection extent instead of image size (per Eiji Nishidai)

## 1.2b4 [06-May-2006]
- Fix minor AFS saving bug

## 1.2b3 [25-Mar-2006]
- Include `R`, `G`, `B`, `A`, `C`, `i`, `U`, `V` undocumented(?) constants (per Harald Heim)

## 1.2b2 [23-Mar-2006]
- New release

## 1.2b1 [22-Mar-2006]
- Read parameters from Windows .8BF Filter Factory standalone plugins, in Mac version

## 1.1f9,10 [21-Mar-2006]
- Improve file filtering on OS X (parse Windows-style extension filter)

## 1.1f7,8 [18-Mar-2006]
- Safer handling of previewing very large images, and clarify an out-of-memory message

## 1.1f6 [17-Mar-2006]
- Fix loading of Filter Factory saved PARM data on Windows

## 1.1f4,5 [16-Mar-2006]
- Add default extension AFS, 8BF for file saving (thanks Daniel Denk)

## 1.1f3 [26-Feb-2006]
- Fix plugin DLL extension; fix many source code warnings

## 1.1f2 [18-Jan-2006]
- Fix CS2/Mac build (missing fields in PiPL); scripting parameters were being ignored (!!)

## 1.1f1 [03-Oct-2005]
- Fix dialog behavior on repeated filter application

## 1.1b11 [22-Jul-2005]
- Merge changes to fix parameter bug reported by Demitrios Vassaras

## 1.1b10 [25-Jun-2005]
- Can make "standalone" Mach-O bundles

## 1.1b9 [24-Jun-2005]
- Mach-O build for CS2/Mac

## 1.1b5 [11-Feb-2005]
- Cosmetic fixes in Mac dialog (right justify slider text, etc)

## 1.1b6 [11-Feb-2005]
- Fix aete key (hash) calculation for standalone plugins to obey Adobe's stated rules

## 1.1b7 [11-Feb-2005]
- Aaaargh fix the stupid hex handling bug in the lexer

## 1.1b8 [11-Feb-2005]
- Remove dbg call in lexer (it's late :( )

## 1.1b3 [10-Feb-2005]
- Various mostly cosmetic cleanups; switch to GNU flex and bison in Makefile
- Use a monospaced font in Win expression text controls

## 1.1b4 [10-Feb-2005]
- Fix crash blooper in make.c (`fixpipl`)

## 1.1b1 [09-Feb-2005]
- Incl aete for Windows

## 1.1b2 [09-Feb-2005]
- Oops, forgot scripting.r (aete resource) in 68K build

## 1.1a1 [06-Feb-2005]
- Scripting support

## 02-Feb-2005
- Add Win VERSIONINFO

## 1.0f6 [20-Dec-2004]
- Fix bug in `rad(d,m,z)` -- wasn't relative to centre of image! Also `ff_c2d`, needed to negate x and y arguments to `atan2()`

## 1.0f5 [25-Sep-2004]
- Remove debug calls in Win build (!!) - thanks Shiro Akaishi; fix RC EDITTEXT syntax

## 1.0f4 [23-May-2004]
- Include missing license (!)

## 1.0f3 [21-Mar-2004]
- Alert when `pb->inData` is `NULL` - temporary workaround for crash bug

## 1.0f2 [20-Mar-2004]
- Fix code to blank margins of the preview... hunting David Owen's crash

## 1.0f1 [21-Feb-2004]
- GPL source release

## 1.0b2 [06-Feb-2004]
- Fix bufferSpace computation (Prepare call)

## 1.0b1 [31-Jan-2004]
- Finally fix Win32 standalone filters - building and running

## 0.9b6 [28-Jan-2004]
- Fix problems with making standalone on Mac (thanks Chris Greene)

## 0.9b5 [21-Jul-2003]
- Fix crash on About box (!!)

## 0.9b4 [19-May-2003]
- Fix Make... suggested file name bug

## 0.9b3 [17-May-2003]
- Add Harry's suggestions: skip comments; other bugfixes

## 0.9b2 [17-May-2003]
- Fix `dmin`/`mmin` crash

## 0.9b1 [16-May-2003]
- Added `cnv()` function, `dmin`, `mmin`

## 0.8b5 [31-Mar-2003]
- Windows version can create standalone (?) NT platform only

## 0.8b4 [28-Mar-2003]
- Windows version can load PARM resource

## 0.8b3 [26-Mar-2003]
- Switch to "universal" PowerPC build in one file (inspired by Harald Heim)

## 0.8b1 [23-Mar-2003]
- Can now make standalone filters (Mac only)

## 0.7b2 [18-Mar-2003]
- Check for direct host callbacks before using them (preview)

## 0.7b1 [16-Mar-2003]
- Read Mac PARM resources

## 0.6b4 [16-Mar-2003]
- Fix `map()`

## 0.6b3 [16-Mar-2003]
- Windows preview pannable

## 0.6b1,2 [16-Mar-2003]
- Zoomable preview

## 0.5b7 [15-Mar-2003]
- Mac version uses edit controls, theme, is movable

## 0.5b6 [13-Mar-2003]
- Finally caught divide-by-zero in Win version

## 0.5b4 [08-Mar-2003]
- First Mac 68K build (CW1)

## 0.5b1 [04-Mar-2003]
- First Windows beta released

## 0.4b7,8,9,10 [02-Mar-2003]

## 0.4b4,5,6 [01-Mar-2003]
- Finally! Live sliders

## 0.4b1 [27-Feb-2003]
- With preview

## 0.3b3,b4 [25-Feb-2003]

## 0.3b1,b2 [24-Feb-2003]

## 0.1b1,0.2b1 [23-Feb-2003]
- Released 0.1b1,0.2b1

## 0.1b1 [22-Feb-2003]
- Started 0.1b1