Is there a way to check that a particular font is available at startup time, for both Mac and Windows?

Hmm. the only way I can think of and I may be mistaken, is to run a script to copy all the file names in the font directory to a text file, import that file into a text field and check it for the font name.

In windows the dos command is dir *.* >list.txt

and this would give you the below list.

Volume in drive C has no label.

Volume Serial Number is 30F3-56EF

Directory of C:WINDOWSFonts

12/30/1997 09:54 PM 49,403 21205___.ttf

12/30/1997 09:54 PM 18,251 2120a___.ttf

12/30/1997 09:54 PM 79,767 35191___.ttf

12/30/1997 09:56 PM 48,703 40240___.ttf

12/30/1997 09:54 PM 59,938 46152___.ttf

12/30/1997 09:58 PM 40,051 50416___.ttf

12/30/1997 09:58 PM 31,737 5041a___.ttf

12/30/1997 10:28 PM 51,446 51253___.ttf

12/30/1997 09:55 PM 103,472 52162___.ttf

12/30/1997 09:58 PM 64,963 54151___.ttf

12/30/1997 09:58 PM 39,335 5415a___.ttf

12/30/1997 10:28 PM 89,082 57930___.ttf

12/30/1997 09:57 PM 172,969 57961___.ttf

12/30/1997 09:57 PM 106,990 59250___.ttf

01/14/1998 08:48 PM 39,265 63193___.ttf

12/30/1997 09:56 PM 30,164 65659___.ttf

12/30/1997 09:56 PM 31,808 70214___.ttf

12/30/1997 09:58 PM 60,935 70729___.ttf

12/30/1997 09:55 PM 27,430 75678___.ttf

12/30/1997 09:56 PM 47,297 75749___.ttf

12/30/1997 09:54 PM 85,455 78640___.ttf

12/30/1997 09:55 PM 45,114 78936___.ttf

12/30/1997 09:58 PM 62,921 89198___.ttf

11/19/2002 10:43 AM 60,656 AGENCYB.TTF

11/19/2002 10:43 AM 58,920 AGENCYR.TTF

11/12/1998 08:18 AM 151,000 ANTQUAB.TTF

11/12/1998 08:18 AM 150,416 ANTQUABI.TTF

11/12/1998 08:18 AM 149,092 ANTQUAI.TTF

08/04/2004 08:00 AM 80,896 app932.fon

08/04/2004 08:00 AM 70,000 app936.fon

08/04/2004 08:00 AM 80,896 app949.fon

08/04/2004 08:00 AM 70,000 app950.fon

08/04/2004 08:00 AM 367,112 arial.ttf

08/04/2004 08:00 AM 352,224 arialbd.ttf

08/04/2004 08:00 AM 226,748 arialbi.ttf

08/04/2004 08:00 AM 207,808 ariali.ttf

11/12/1998 04:39 PM 134,200 ARIALN.TTF

11/12/1998 04:39 PM 139,128 ARIALNB.TTF

11/12/1998 04:39 PM 138,568 ARIALNBI.TTF

11/12/1998 04:39 PM 141,408 ARIALNI.TTF

01/02/2007 12:28 AM 118,832 ariblk.ttf

08/18/1999 12:13 PM 45,260 ARLRDBD.TTF

08/04/2004 08:00 AM 16,258,580 batang.ttc

11/12/1998 08:18 AM 155,528 BKANT.TTF

11/27/2002 02:42 PM 74,440 BOD_B.TTF

11/27/2002 02:42 PM 85,308 BOD_BI.TTF

11/27/2002 02:42 PM 83,816 BOD_BLAI.TTF

11/27/2002 02:42 PM 73,616 BOD_BLAR.TTF

11/27/2002 02:42 PM 74,092 BOD_CB.TTF

11/27/2002 02:42 PM 81,072 BOD_CBI.TTF

11/27/2002 02:42 PM 80,536 BOD_CI.TTF

11/27/2002 02:42 PM 80,580 BOD_CR.TTF

11/27/2002 02:42 PM 89,940 BOD_I.TTF

11/27/2002 02:42 PM 77,884 BOD_R.TTF

11/04/1998 05:30 PM 160,940 BOOKOS.TTF

11/04/1998 05:30 PM 154,576 BOOKOSB.TTF

11/04/1998 05:30 PM 162,460 BOOKOSBI.TTF

08/18/1999 01:53 PM 161,020 BOOKOSI.TTF

10/15/1999 09:55 AM 105,296 BRADHITC.TTF

12/12/2003 11:42 AM 54,412 BSSYM7.TTF

10/08/1997 08:51 AM 6,260 C39b3lj4.ttf

05/21/1996 12:20 PM 6,268 C39b4lj2.ttf

05/21/1996 12:20 PM 6,168 C39hilj2.ttf

05/21/1996 12:20 PM 6,236 C39lolj2.ttf

05/21/1996 12:19 PM 6,272 C39mdlj2.ttf

08/04/2004 08:00 AM 10,992 c8514fix.fon

08/04/2004 08:00 AM 13,552 c8514oem.fon

08/04/2004 08:00 AM 17,760 c8514sys.fon

09/11/2006 12:12 PM 352,736 CALIBRI.TTF

09/11/2006 12:12 PM 351,544 CALIBRIB.TTF

09/11/2006 12:12 PM 362,524 CALIBRII.TTF

09/11/2006 12:12 PM 367,620 CALIBRIZ.TTF

04/02/1999 03:31 PM 80,148 CALIST.TTF

04/02/1999 03:32 PM 85,080 CALISTB.TTF

04/02/1999 03:32 PM 84,960 CALISTBI.TTF

04/02/1999 03:32 PM 59,372 CALISTI.TTF

09/26/2006 09:12 PM 1,090,456 CAMBRIA.TTC

09/26/2006 09:12 PM 331,916 CAMBRIAB.TTF

08/09/2006 02:14 PM 336,812 CAMBRIAI.TTF

08/09/2006 02:13 PM 326,024 CAMBRIAZ.TTF

08/09/2006 02:13 PM 161,644 CANDARA.TTF

08/09/2006 02:13 PM 164,904 CANDARAB.TTF

08/09/2006 02:13 PM 167,764 CANDARAI.TTF

08/09/2006 02:13 PM 165,928 CANDARAZ.TTF

10/15/1999 09:55 AM 48,252 CASTELAR.TTF

03/17/1999 03:07 PM 162,380 CENSCBK.TTF

08/04/2004 08:00 AM 127,596 comic.ttf

08/04/2004 08:00 AM 111,476 comicbd.ttf

01/18/2006 12:32 PM 98,520 CONSOLA.TTF

01/18/2006 12:32 PM 100,436 CONSOLAB.TTF

01/18/2006 12:32 PM 104,144 CONSOLAI.TTF

01/18/2006 12:32 PM 110,268 CONSOLAZ.TTF

08/09/2006 02:13 PM 313,880 CONSTAN.TTF

08/09/2006 02:13 PM 317,724 CONSTANB.TTF

08/09/2006 02:13 PM 306,000 CONSTANI.TTF

08/09/2006 02:13 PM 313,044 CONSTANZ.TTF

08/18/1999 12:13 PM 61,552 COPRGTB.TTF

08/18/1999 12:13 PM 62,716 COPRGTL.TTF

08/09/2006 02:13 PM 205,016 CORBEL.TTF

08/09/2006 02:13 PM 210,788 CORBELB.TTF

08/09/2006 02:13 PM 209,852 CORBELI.TTF

08/09/2006 02:13 PM 217,308 CORBELZ.TTF

08/04/2004 08:00 AM 303,296 cour.ttf

08/04/2004 08:00 AM 312,920 courbd.ttf

08/04/2004 08:00 AM 236,148 courbi.ttf

08/04/2004 08:00 AM 245,032 couri.ttf

02/02/2000 05:28 PM 69,480 CURLZ___.TTF

08/04/2004 08:00 AM 5,600 cvgafix.fon

08/04/2004 08:00 AM 12,896 cvgasys.fon

06/24/1999 11:40 AM 51,652 ELEPHNT.TTF

06/24/1999 11:40 AM 54,324 ELEPHNTI.TTF

06/25/1999 12:23 PM 49,768 ENGR.TTF

03/17/1999 03:07 PM 57,508 ERASBD.TTF

03/17/1999 03:07 PM 59,996 ERASDEMI.TTF

03/17/1999 03:07 PM 68,656 ERASLGHT.TTF

03/17/1999 03:07 PM 60,772 ERASMD.TTF

08/04/2004 08:00 AM 79,744 estre.ttf

04/23/1999 04:22 PM 45,952 FELIXTI.TTF

11/21/2002 05:17 PM 61,776 FORTE.TTF

01/10/2001 02:32 PM 152,700 FRABK.TTF

01/10/2001 02:32 PM 169,620 FRABKIT.TTF

04/23/1999 04:22 PM 142,932 FRADM.TTF

04/23/1999 04:22 PM 116,940 FRADMCN.TTF

04/23/1999 04:22 PM 135,904 FRADMIT.TTF

04/23/1999 04:22 PM 139,400 FRAHV.TTF

04/23/1999 04:22 PM 152,700 FRAHVIT.TTF

08/04/2004 08:00 AM 135,984 framd.ttf

05/05/1999 08:02 PM 132,516 FRAMDCN.TTF

08/04/2004 08:00 AM 152,844 framdit.ttf

08/06/2012 09:46 AM 7,220 FRE3OF9X.TTF

08/06/2012 09:46 AM 5,116 FREE3OF9.TTF

04/23/1999 04:22 PM 58,580 FRSCRIPT.TTF

11/10/1998 02:52 PM 196,616 GARA.TTF

11/10/1998 02:52 PM 198,604 GARABD.TTF

11/10/1998 02:52 PM 188,988 GARAIT.TTF

08/04/2004 08:00 AM 214,936 gautami.ttf

08/04/2004 08:00 AM 155,068 georgia.ttf

08/04/2004 08:00 AM 141,032 georgiab.ttf

08/04/2004 08:00 AM 157,388 georgiai.ttf

08/04/2004 08:00 AM 159,736 georgiaz.ttf

10/15/1999 09:55 AM 142,072 GIGI.TTF

03/17/1999 03:07 PM 71,496 GILBI___.TTF

03/17/1999 03:07 PM 68,304 GILB____.TTF

04/02/1999 03:32 PM 60,320 GILC____.TTF

03/17/1999 03:07 PM 69,436 GILI____.TTF

04/02/1999 03:32 PM 72,408 GILLUBCD.TTF

04/02/1999 03:32 PM 73,136 GILSANUB.TTF

03/17/1999 03:07 PM 67,416 GIL_____.TTF

08/18/1999 12:13 PM 72,676 GLECB.TTF

02/09/2007 03:33 PM 26,040 GlobalMonospace.CompositeFont

02/09/2007 03:33 PM 26,489 GlobalSansSerif.CompositeFont

02/09/2007 03:33 PM 29,779 GlobalSerif.CompositeFont

02/09/2007 03:33 PM 30,808 GlobalUserInterface.CompositeFont

04/02/1999 03:32 PM 84,668 GLSNECB.TTF

11/12/1998 04:39 PM 137,568 GOTHIC.TTF

11/12/1998 04:39 PM 129,676 GOTHICB.TTF

11/12/1998 04:39 PM 139,084 GOTHICBI.TTF

11/12/1998 04:39 PM 148,520 GOTHICI.TTF

08/18/1999 12:13 PM 81,376 GOUDOS.TTF

08/18/1999 12:13 PM 82,796 GOUDOSB.TTF

08/18/1999 12:13 PM 80,280 GOUDOSI.TTF

05/03/2002 04:05 PM 55,956 GOUDYSTO.TTF

08/04/2004 08:00 AM 13,518,660 gulim.ttc

08/04/2004 08:00 AM 11,056 h8514fix.fon

08/04/2004 08:00 AM 12,400 h8514oem.fon

08/04/2004 08:00 AM 10,032 h8514sys.fon

11/14/1998 03:12 PM 108,664 HATTEN.TTF

08/04/2004 08:00 AM 5,680 hvgafix.fon

08/04/2004 08:00 AM 6,512 hvgasys.fon

01/02/2007 12:44 AM 137,448 impact.ttf

08/18/1999 12:14 PM 60,488 IMPRISHA.TTF

10/15/1999 09:55 AM 132,372 ITCBLKAD.TTF

10/15/1999 09:55 AM 64,056 ITCEDSCR.TTF

08/04/2004 08:00 AM 12,896 j8514fix.fon

08/04/2004 08:00 AM 14,432 j8514oem.fon

08/04/2004 08:00 AM 10,656 j8514sys.fon

08/04/2004 08:00 AM 41,584 jsmalle.fon

08/04/2004 08:00 AM 38,480 jsmallf.fon

08/04/2004 08:00 AM 6,528 jvgafix.fon

08/04/2004 08:00 AM 7,728 jvgasys.fon

08/04/2004 08:00 AM 121,452 kartika.ttf

08/04/2004 08:00 AM 73,292 latha.ttf

11/01/2012 11:04 AM 0 list.txt

11/15/1999 11:09 AM 64,608 LSANS.TTF

11/15/1999 11:09 AM 59,976 LSANSD.TTF

11/15/1999 11:09 AM 66,320 LSANSDI.TTF

11/15/1999 11:09 AM 65,412 LSANSI.TTF

11/18/1999 10:29 AM 55,984 LTYPE.TTF

11/18/1999 10:29 AM 52,868 LTYPEB.TTF

11/18/1999 10:29 AM 54,620 LTYPEBO.TTF

11/18/1999 10:29 AM 65,412 LTYPEO.TTF

08/04/2004 08:00 AM 115,068 lucon.ttf

08/04/2004 08:00 AM 323,980 l_10646.ttf

06/24/1999 07:53 AM 61,384 MAIAN.TTF

08/04/2004 08:00 AM 143,864 mangal.ttf

01/02/2007 12:55 AM 461,672 micross.ttf

08/04/2004 08:00 AM 8,823,308 mingliu.ttc

08/04/2004 08:00 AM 8,704 modern.fon

08/04/2004 08:00 AM 8,272,028 msgothic.ttc

08/04/2004 08:00 AM 9,135,960 msmincho.ttc

11/10/1998 02:52 PM 157,360 MTCORSVA.TTF

08/04/2004 08:00 AM 40,500 mvboli.ttf

06/24/1999 09:33 AM 55,400 OCRAEXT.TTF

04/08/2003 01:41 PM 17,672 OUTLOOK.TTF

08/04/2004 08:00 AM 489,884 pala.ttf

08/04/2004 08:00 AM 434,004 palab.ttf

08/04/2004 08:00 AM 344,288 palabi.ttf

08/04/2004 08:00 AM 430,800 palai.ttf

06/29/1999 01:57 PM 51,404 PALSCRI.TTF

05/10/2002 03:19 PM 163,476 PAPYRUS.TTF

06/29/1999 07:54 AM 75,620 PERBI___.TTF

06/29/1999 07:54 AM 58,512 PERB____.TTF

06/29/1999 07:54 AM 76,080 PERI____.TTF

06/28/1999 11:17 AM 48,320 PERTIBD.TTF

06/28/1999 11:17 AM 43,800 PERTILI.TTF

06/29/1999 11:15 AM 60,216 PER_____.TTF

10/15/1999 09:56 AM 82,680 PRISTINA.TTF

08/04/2004 08:00 AM 57,348 raavi.ttf

06/24/1999 09:33 AM 132,600 RAGE.TTF

05/06/1999 11:59 AM 220,172 REFSAN.TTF

09/03/1998 03:14 PM 53,288 REFSPCL.TTF

06/29/1999 10:55 AM 59,444 ROCCB___.TTF

06/29/1999 10:55 AM 55,824 ROCC____.TTF

06/29/1999 10:56 AM 72,272 ROCK.TTF

06/29/1999 10:56 AM 68,780 ROCKB.TTF

06/29/1999 10:56 AM 73,700 ROCKBI.TTF

06/29/1999 01:57 PM 49,168 ROCKEB.TTF

06/29/1999 10:56 AM 76,756 ROCKI.TTF

08/04/2004 08:00 AM 13,312 roman.fon

08/04/2004 08:00 AM 11,056 s8514fix.fon

08/04/2004 08:00 AM 12,384 s8514oem.fon

08/04/2004 08:00 AM 17,760 s8514sys.fon

03/17/1999 03:07 PM 168,756 SCHLBKB.TTF

03/17/1999 03:07 PM 160,964 SCHLBKBI.TTF

03/17/1999 03:07 PM 163,164 SCHLBKI.TTF

08/04/2004 08:00 AM 12,288 script.fon

06/24/1999 09:33 AM 55,500 SCRIPTBL.TTF

08/04/2004 08:00 AM 234,280 shruti.ttf

08/04/2004 08:00 AM 10,044,356 simhei.ttf

01/02/2007 12:37 AM 10,512,288 simsun.ttc

08/04/2004 08:00 AM 5,680 svgafix.fon

08/04/2004 08:00 AM 12,896 svgasys.fon

08/04/2004 08:00 AM 221,676 sylfaen.ttf

08/04/2004 08:00 AM 69,464 symbol.ttf

01/02/2007 12:56 AM 383,804 tahoma.ttf

01/02/2007 12:56 AM 355,680 tahomabd.ttf

06/29/1999 07:54 AM 73,856 TCBI____.TTF

06/29/1999 07:54 AM 74,656 TCB_____.TTF

06/25/1999 03:11 PM 66,020 TCCB____.TTF

11/19/2002 10:42 AM 74,708 TCCEB.TTF

06/25/1999 03:11 PM 66,804 TCCM____.TTF

06/29/1999 07:54 AM 78,236 TCMI____.TTF

06/29/1999 07:54 AM 76,252 TCM_____.TTF

08/04/2004 08:00 AM 409,280 times.ttf

08/04/2004 08:00 AM 398,372 timesbd.ttf

08/04/2004 08:00 AM 239,692 timesbi.ttf

08/04/2004 08:00 AM 248,368 timesi.ttf

08/04/2004 08:00 AM 134,108 trebuc.ttf

08/04/2004 08:00 AM 123,096 trebucbd.ttf

08/04/2004 08:00 AM 131,188 trebucbi.ttf

08/04/2004 08:00 AM 139,288 trebucit.ttf

12/30/1997 09:50 PM 44,960 Tt0131m_.ttf

12/30/1997 09:50 PM 38,396 Tt0246m_.ttf

01/14/1998 08:48 PM 51,728 Tt0362m_.ttf

12/30/1997 09:51 PM 126,680 Tt0610m_.ttf

12/30/1997 09:52 PM 50,140 Tt0952m_.ttf

12/30/1997 09:52 PM 89,380 Tt1044m_.ttf

12/30/1997 09:52 PM 57,224 Tt1139m_.ttf

12/30/1997 09:53 PM 51,364 Tt1221m_.ttf

12/30/1997 09:53 PM 100,616 Tt7009m_.ttf

12/30/1997 09:53 PM 90,472 Tt9832l_.ttf

01/02/2007 12:54 AM 148,624 tunga.ttf

08/04/2004 08:00 AM 171,792 verdana.ttf

08/04/2004 08:00 AM 137,616 verdanab.ttf

08/04/2004 08:00 AM 155,076 verdanai.ttf

08/04/2004 08:00 AM 154,800 verdanaz.ttf

08/04/2004 08:00 AM 7,232 vga932.fon

08/04/2004 08:00 AM 6,272 vga936.fon

08/04/2004 08:00 AM 6,304 vga949.fon

08/04/2004 08:00 AM 6,272 vga950.fon

08/04/2004 08:00 AM 252,820 vrinda.ttf

08/04/2004 08:00 AM 118,752 webdings.ttf

08/04/2004 08:00 AM 81,000 wingding.ttf

01/22/2002 04:22 PM 65,788 WINGDNG2.TTF

01/22/2002 04:22 PM 35,328 WINGDNG3.TTF

08/04/2004 08:00 AM 18,880 wst_czec.fon

08/04/2004 08:00 AM 18,880 wst_engl.fon

08/04/2004 08:00 AM 18,880 wst_fren.fon

08/04/2004 08:00 AM 18,880 wst_germ.fon

08/04/2004 08:00 AM 18,880 wst_ital.fon

08/04/2004 08:00 AM 18,880 wst_span.fon

08/04/2004 08:00 AM 18,880 wst_swed.fon

292 File(s) 108,973,276 bytes

0 Dir(s) 451,178,958,848 bytes free

Initially I was thinking AppleScript to check loaded fonts, I just didn't know the equivalent on PC. But your answer should do it, thanks.

The DOS command to find a file on Windows 7 is:

dir c:\Windows\Fonts | find "courfe.fon"

If the result is empty you don't have that file/font.