Resolved! Final Fix for Win98SE SP2 Modem Error 630, 2nd DUN-Connection Attempt Requiring Reboot 01. Save a copy of Vcomm.vxd file in C:\WINDOWS\SYSTEM\VMM32\ into the same folder and rename it to Vcomm.vxd.new 02. Save a copy of WINMODEM.VXD file in C:\WINDOWS\SYSTEM\ into the same folder and rename it to WINMODEM.VXD.new 03. Click on >Start>Run, type sfc.exe and >OK button to open System File Checker; and 04. Click on the button to extract a system file from the Win98se setup .cab files, specify the Vcomm.vxd file and save it into the same C:\WINDOWS\SYSTEM\VMM32\ folder. 05. Close all, properly restart, and your 2nd DUN-Connection attempt should fail again. 06. Click on >Start>Run, type sfc.exe and >OK button to open System File Checker; and 07. Click on the button to extract a system file from the Win98se setup .cab files, specify the WINMODEM.VXD file and save it into the same C:\WINDOWS\SYSTEM\ folder. 08. Close all, properly restart, and now even your FIRST DUN-Connection attempt should fail and generate a new error! (Don't panic! Apparently, this is needed to finalize the restoration of the new Vcomm.vxd file with the old one!) 09. In Windows Explorer, rename the restored, old WINMODEM.VXD file in C:\WINDOWS\SYSTEM\ as WINMODEM.VXD.old and 10. Rename the WINMODEM.VXD.new copy file in C:\WINDOWS\SYSTEM\ as WINMODEM.VXD (i.e. use the new one again!) 11. Close all, properly restart, and now your modem should work like a charm! (No more "error 630"!) Post your successes/failures or your questions. I wish you good luck! Wiz P.S. This fix is partly based on solution by erpdude8, posted on 10-10-05 on this very topic (Thank you, erpdude8 & others who tried their best to help): "[T]ry using the original 98SE released version of the VCOMM.VXD file... stored in the Windows\System\Vmm32 folder. open System File Checker [sfc.exe] and click on the button to extract a system file from the Win98se setup .cab files, specify the vcomm.vxd file and save it into the 'Windows\System\Vmm32' folder."
