If you have an old home-grown vb6 application, you may not have an installer for it. If that is the case, you will have some trouble getting it to run on a new Windows 7 computer. Chances are you are missing Mscomct2.ocx, Msdatlst.ocx and other required old microsoft 32 bit dlls and ocx files.
Don’t take a chance getting these files from those dll download sites. Download them directly from Microsoft! But you will have to do a little work to get at them once you have downloaded.
Here’s the link: http://support.microsoft.com/kb/957924/ Download the cumulative update rollup for the Visual Basic 6.0 Service Pack 6 Runtime Extended Files and then open a command window in the folder where you saved it.
Run this command: msiexec /a VB60SP6-KB957924-v2-x86-ENU.msi /qb TARGETDIR=.\vb6run\
In the vb6run folder you will find a large number of .ocx and .dll files. You can register these with regsvr32 and that should get you closer to running your vb6 app on windows 7.
A complete listing of the files contained with in that .msi file:
| 03/24/2009 | 12:58 | PM | 86,310 | ComCt232.cab |
| 03/24/2009 | 12:58 | PM | 142,147 | ComCt332.cab |
| 03/24/2009 | 12:58 | PM | 237,887 | comctl32.cab |
| 03/24/2009 | 12:58 | PM | 70,382 | ComDlg32.cab |
| 03/24/2009 | 12:58 | PM | 26,707 | dbadapt.cab |
| 03/24/2009 | 12:58 | PM | 257,489 | dbgrid32.cab |
| 03/24/2009 | 12:58 | PM | 104,477 | dblist32.cab |
| 03/24/2009 | 12:58 | PM | 92,360 | mci32.cab |
| 03/24/2009 | 12:58 | PM | 49,425 | MSAddnDr.cab |
| 03/24/2009 | 12:58 | PM | 64,038 | MSAdoDc.cab |
| 03/24/2009 | 12:58 | PM | 41,564 | MSBind.cab |
| 03/24/2009 | 12:57 | PM | 28,465 | mscdrun.cab |
| 03/24/2009 | 12:58 | PM | 452,634 | MSChrt20.cab |
| 03/24/2009 | 12:58 | PM | 335,325 | mscomct2.cab |
| 03/24/2009 | 12:58 | PM | 479,056 | mscomctl.cab |
| 03/24/2009 | 12:58 | PM | 59,264 | MSComm32.cab |
| 03/24/2009 | 12:58 | PM | 133,168 | MSDatGrd.cab |
| 03/24/2009 | 12:58 | PM | 117,465 | MSDatLst.cab |
| 03/24/2009 | 12:58 | PM | 100,023 | MSDatRep.cab |
| 03/24/2009 | 12:58 | PM | 146,944 | MSDbRpt.cab |
| 03/24/2009 | 12:58 | PM | 148,222 | MSDbRptr.cab |
| 03/24/2009 | 12:58 | PM | 112,053 | MSFlxGrd.cab |
| 03/24/2009 | 12:58 | PM | 207,713 | MShflxgd.cab |
| 03/24/2009 | 12:58 | PM | 105,828 | MSHtmPgd.cab |
| 03/24/2009 | 12:57 | PM | 44,119 | MSHtmPgr.cab |
| 03/24/2009 | 12:58 | PM | 66,922 | MSINET.cab |
| 03/24/2009 | 12:58 | PM | 70,315 | msmapi32.cab |
| 03/24/2009 | 12:58 | PM | 89,928 | msmask32.cab |
| 03/24/2009 | 12:58 | PM | 89,581 | msrdc20.cab |
| 03/24/2009 | 12:58 | PM | 190,950 | msrdo20.cab |
| 03/24/2009 | 12:58 | PM | 66,366 | msstdfmt.cab |
| 03/24/2009 | 12:57 | PM | 50,024 | msstkprp.cab |
| 03/24/2009 | 12:58 | PM | 112,782 | mswcrun.cab |
| 03/24/2009 | 12:57 | PM | 64,013 | MSWINSCK.cab |
| 03/24/2009 | 12:58 | PM | 50,631 | PicClp32.cab |
| 03/24/2009 | 12:58 | PM | 100,421 | richtx32.cab |
| 03/24/2009 | 12:57 | PM | 41,911 | sysinfo.cab |
| 03/24/2009 | 12:58 | PM | 109,944 | TabCtl32.cab |
| 03/24/2009 | 12:58 | PM | 159,126 | wbclsdsr.cab |
| 03/24/2009 | 09:33 | AM | 2,495 | ComCt232.dep |
| 03/24/2009 | 12:52 | PM | 170,080 | ComCt232.ocx |
| 03/24/2009 | 12:54 | PM | 3,024 | ComCt332.dep |
| 03/24/2009 | 12:52 | PM | 415,552 | ComCt332.ocx |
| 03/24/2009 | 09:32 | AM | 2,495 | comctl32.dep |
| 03/24/2009 | 12:52 | PM | 614,992 | comctl32.Ocx |
| 03/24/2009 | 09:33 | AM | 2,494 | ComDlg32.Dep |
| 03/24/2009 | 12:52 | PM | 155,984 | ComDlg32.OCX |
| 03/24/2009 | 09:46 | AM | 2,501 | dbadapt.dep |
| 03/24/2009 | 12:52 | PM | 57,168 | dbadapt.dll |
| 01/21/2009 | 01:35 | PM | 2,387 | dbgrid32.dep |
| 03/24/2009 | 12:52 | PM | 567,104 | dbgrid32.ocx |
| 03/24/2009 | 09:49 | AM | 2,494 | dblist32.dep |
| 03/24/2009 | 12:52 | PM | 222,528 | dblist32.Ocx |
| 03/24/2009 | 09:37 | AM | 2,394 | mci32.dep |
| 03/24/2009 | 12:52 | PM | 215,880 | mci32.Ocx |
| 03/24/2009 | 09:43 | AM | 2,502 | MSAdoDc.dep |
| 03/24/2009 | 12:52 | PM | 134,976 | MSAdoDc.ocx |
| 03/24/2009 | 09:43 | AM | 492 | MSBind.dep |
| 03/24/2009 | 12:52 | PM | 84,808 | MSBind.dll |
| 03/24/2009 | 09:45 | AM | 2,494 | MSChrt20.dep |
| 03/24/2009 | 12:52 | PM | 1,029,968 | MSChrt20.ocx |
| 03/24/2009 | 09:37 | AM | 2,494 | mscomct2.dep |
| 03/24/2009 | 12:52 | PM | 659,264 | mscomct2.ocx |
| 03/24/2009 | 09:36 | AM | 2,494 | mscomctl.dep |
| 03/24/2009 | 12:52 | PM | 1,069,376 | mscomctl.OCX |
| 03/24/2009 | 09:42 | AM | 2,494 | MSComm32.dep |
| 03/24/2009 | 12:52 | PM | 119,616 | MSComm32.Ocx |
| 03/24/2009 | 12:52 | PM | 69,440 | MSCsfDbg.dll |
| 03/24/2009 | 09:45 | AM | 2,514 | MSDatGrd.dep |
| 03/24/2009 | 12:52 | PM | 278,352 | MSDatGrd.ocx |
| 03/24/2009 | 09:50 | AM | 2,494 | MSDatLst.dep |
| 03/24/2009 | 12:52 | PM | 252,240 | MSDatLst.Ocx |
| 03/24/2009 | 09:46 | AM | 2,507 | MSDatRep.dep |
| 03/24/2009 | 12:52 | PM | 206,160 | MSDatRep.Ocx |
| 03/24/2009 | 12:52 | PM | 340,800 | MSDbRpt.dll |
| 03/24/2009 | 09:47 | AM | 2,545 | MSDbRptr.dep |
| 03/24/2009 | 12:52 | PM | 328,512 | MSDbRptr.dll |
| 03/03/2009 | 10:18 | AM | 2,494 | MSFlxGrd.dep |
| 03/24/2009 | 12:52 | PM | 258,880 | MSFlxGrd.ocx |
| 03/24/2009 | 09:53 | AM | 2,524 | MShflxgd.dep |
| 03/24/2009 | 12:52 | PM | 443,488 | MShflxgd.ocx |
| 03/24/2009 | 09:42 | AM | 2,405 | MSINET.dep |
| 03/24/2009 | 12:52 | PM | 136,008 | MSINET.Ocx |
| 03/24/2009 | 09:38 | AM | 2,494 | msmapi32.dep |
| 03/24/2009 | 12:52 | PM | 151,376 | msmapi32.Ocx |
| 03/24/2009 | 09:38 | AM | 2,494 | msmask32.dep |
| 03/24/2009 | 12:52 | PM | 178,512 | msmask32.ocx |
| 03/24/2009 | 09:39 | AM | 2,493 | msrdc20.dep |
| 03/24/2009 | 12:52 | PM | 190,800 | msrdc20.Ocx |
| 03/24/2009 | 09:34 | AM | 2,670 | msrdo20.dep |
| 03/24/2009 | 12:52 | PM | 449,872 | msrdo20.dll |
| 03/24/2009 | 12:52 | PM | 129,872 | msstdfmt.dll |
| 03/24/2009 | 12:52 | PM | 107,840 | msstkprp.dll |
| 03/24/2009 | 09:41 | AM | 2,463 | MSWINSCK.dep |
| 03/24/2009 | 12:52 | PM | 127,808 | MSWINSCK.ocx |
| 03/24/2009 | 09:39 | AM | 2,494 | PicClp32.dep |
| 03/24/2009 | 12:52 | PM | 100,160 | PicClp32.Ocx |
| 03/24/2009 | 09:40 | AM | 3,008 | richtx32.dep |
| 03/24/2009 | 12:52 | PM | 218,432 | richtx32.Ocx |
| 03/24/2009 | 09:40 | AM | 2,481 | sysinfo.dep |
| 03/24/2009 | 12:52 | PM | 80,208 | sysinfo.Ocx |
| 03/24/2009 | 09:40 | AM | 2,494 | TabCtl32.dep |
| 03/24/2009 | 12:52 | PM | 221,504 | TabCtl32.Ocx |
| 03/24/2009 | 09:52 | AM | 2,486 | MSAddnDr.dep |
| 03/24/2009 | 12:52 | PM | 99,136 | MSAddnDr.dll |
| 03/24/2009 | 09:35 | AM | 2,543 | mscdrun.dep |
| 03/24/2009 | 12:52 | PM | 57,152 | mscdrun.dll |
| 03/24/2009 | 12:52 | PM | 245,584 | MSHtmPgd.dll |
| 03/24/2009 | 09:32 | AM | 2,486 | MSHtmPgr.dep |
| 03/24/2009 | 12:52 | PM | 117,584 | MSHtmPgr.dll |
| 03/24/2009 | 09:50 | AM | 2,474 | mswcrun.dep |
| 03/24/2009 | 12:52 | PM | 310,592 | mswcrun.dll |
| 03/24/2009 | 12:52 | PM | 334,672 | wbclsdsr.Ocx |