JIMW  But FinderPop does this along with all its other features and it is donationware - i.e. you donate what you feel it is worth or nothing if that is your opinion of it. I donated some time ago. It has also been around since at least OS7.  
(Version 1.3.3)

HEAVY_SHOWER  Drawing a marquee, Photoshop in my case, invokes it. I always slow down to a crawl when drawing the latter half of a marquee, as I contemplate precisely where I want it to close (it's easier to begin a marquee precisely where you want it to start. lol). Then, just as I'm about to release the mouse at precisely the right spot, POP HELLO LET-ME-ANNOY-YOU appears the contextual menu. Real pain. I have to turn Finger Snap off when doing PS. I haven't tried it a pen program...  
(Version 1.3.2)

GAZMAN  Downloaded it, tried it and bought it, all in the one day. This is exactly what I've been looking for to use with my old PowerBook when I'm away from the office.

Works well, not a single issue so far, and very reasonably priced.  
(Version 1.3.1)

JOEL SCHMIDT  just buy a Mighty Mouse. Yes, it is $49 +taxes, but you can customise the buttons any way you want and also has a scroll wheel. In the long run, it's a better investment  
(Version 1.3)

ANONYMOUS  Serious problem with the software: In many programs you double click to select the word (triple click to select line) and press ctrl-click to get spell check option. Now one finger snap on, a double clicked word makes the line selected rather than bringing the contextual menu.

S  
(Version 1.2.2)

JOSEPH A. WARDELL  Version 1.2.1 should fix the issue you were having with the Cisco VPN client. If it doesn't, then please email feedback@oldjewelsoftware.com  
(Version 1.2)

ANONYMOUS  Nice app. However, seems to conflict with Cisco VPN Client 4.6 and 4.7.  
(Version 1.2)

ANONYMOUS  Nice, but since I have a two-button mouse, it would be nice to have a setting to stop when a mouse is present. I only need to use it when I'm using my trackpad.  
(Version 1.2)

OLD JEWEL SOFTWARE  The contextual menu popping up over a scroll bar has been fixed as of version 1.2, please give it a try.

Regarding different behavior in different apps, this is unfortuantely the way things happen in OS X. Some apps handle right-clicks one way and some handle them another. In general, if you hold the mouse button down until you hear the click sound, then release it, then you should get the contextual menu in just about any application.

And of course, if you email me at feedback@oldjewelsoftware.com, I'll know about bugs quicker than if you just post them on macupdate.  
(Version 1.2)

T  Some bugs:

In Finder list-view, if you click and hold the scrollbar, contextual menu pops up.

If you double-click a word, but keep the mouse button down for the second click (or triple click for a paragraph) the contextual menu will not not show up, unless you release your mouse after the hold - in text apps, like DevonThink, VoodooPad, Hog Bay Notebook, TextEdit, Apple Pages, etc. MS Word and AbiWord show correct behavior and show the contextual menu during the hold.

Mac OS X v10.4.2  
(Version 1.1.2)

ANONYMOUS  Hallelujah!

While I agree that you can do this with FruitMenu and iScroll2... I want a single purpose app that can do just this one thing. I don't want all that other stuff. (Also iScroll2 only works if you have a track pad... what about iMac owners with a one-button mouse?)

FinderPop was fantastic and finally with OFS there is an OSX replacement.  
(Version 1.1.2)

MACROB  nice, but Fruitmenu allows to do the same for many years now. And much more, for $10  
(Version 1.1.2)

ANONYMOUS  Works as advertised but iScroll2 does it for free.  
(Version 1.1.1)

AM  This is an absolutely life (and time - and arthritic pain) saving little Pre-pane. I suggested this on many forums and sites about 2-3 years ago when OS X first came out and FinderPop died.

Its not free or donationware (unlike FinderPop) - but I guess the price is ok - whats with the $6.85 though - why not $7 ?

Bye

AM  
(Version 1.1)

ANONYMOUS  if you have a powerbook that meets the requirements give iScroll2 a try. you can right click using two fingers on the trackpad and clicking. dead handy.  
(Version 1.1)

T  Wow, the requested features were added very quickly. I will test the app now. I used Finderpop under Mac OS 8, and I've been looking for an app like this under Mac OS X. Finally, a developer has come to the rescue! I wonder why Apple hasn't implemented this feature before?  
(Version 1.1)

GITHON  I think I'm missing something... what's wrong with holding control?  
(Version 1.1)

ANONYMOUS  xGestures does this and a whole more for five buckaroos.  
(Version 1.0)

T  Remove the click sound and the flash, add a slider for setting the contextual menu delay in the PrefPane, and add the option how much movement is considered acceptable (in pixels) and you've got me. As it is now, it needs some work.  
(Version 1.0)

ANONYMOUS  To answer your questions:

Yes, click & drag still works. If you move the mouse while the button is down, One Finger Snap knows to not activate.

I intentionally made the delay slightly longer than Firefox's for the first release so as to cause less confusion. Yes, later versions will probably offer more options.  
(Version 1.0)

ERIC  Seems to work as advertised. I'd like to see controls in the preference pane for turning off the light flash on click and hold which is a personal taste but I don't care for it. I'd also like to see the click and hold time controllable. It's noticeably slower (ie noticeably longer wait before the context menu drops down) than click and hold on Firefox. I find the Firefox timing more appropriate.   
(Version 1.0)

ANONYMOUS  what about click'n'drag? will that work still?  
(Version 1.0)